Product Catalogue Slewing Bearings

Transcription

1 Product Catalogue Slewing Bearings

2 Foreword and Disclaimer This product catalogue provides information on the comprehensive, standard range of Liebherr slewing ring bearings for diameters between. in and 6 in. Diameters out of this range are available on request. The content of this catalogue was compiled with the utmost care. However, no responsibility can be taken for the correctness, completeness and topicality of the disclosed information. We reserve the right to make changes resulting from the further development of the product range. All texts, images, graphics, tables or other diagrams, and their arrangement, are protected by law (Copyright Liebherr-Components AG, all rights reserved). The content of the catalogue must not be copied, disseminated, modified or made accessible to third parties for commercial use without the express written consent of Liebherr-Components AG. Some of the images shown in this catalogue are subject to third-party copyright. For the latest version of the Large Diameter Bearing Product Catalogue by Liebherr, please visit Please contact us for further information. Publisher: Liebherr-Components AG Postfach CH- Nussbaumen / AG Switzerland Tel.: Fax: components@liebherr.com Copyright May 07 by Liebherr-Components Biberach GmbH, Biberach an der Riß Liebherr Product Catalogue Slewing Bearings

3 List of content High-quality slewing bearings for all applications Overview of bearing types Structure of four-point bearings and roller bearings Materials 6 Raceway 8 6 Seals 9 7 Bolt 0 8 Gearing 9 Geometric properties 0 Surface coating and corrosion protection 7 Operating temperature 9 Requirements of adjacent construction 9 Influence of adjacent construction K rep factor Finite Element Method Assessment of the adjacent construction by Liebherr 6 Bearing mounting 6 7 Production 8 Lubrication 8 9 Packaging, transportation and storage 0 Control / Inspection Bearing selection 8 Dynamic bearing service life 6 Rotation resistance of bearing 68 Drive torque required 70 Glossary 7 Overview standard range 7 6 Technical data, Overview KUD_V Ball bearings; four-point contact 7 Technical data, Overview KUD_Z Double-row ball bearings 0 Technical data, Overview KUD_W Double-row ball bearings; four-point contact Technical data, Overview ROD_D Triple-row roller bearings* 9 Technical data, Overview ROD_D Triple-row roller bearings Technical data, Overview RKD Combined roller and ball bearings 7 Further information * Shorter delivery times can be realized. Liebherr Product Catalogue Slewing Bearings

4 High-quality slewing bearings for all applications Liebherr is one of the leading global manufacturers of slewing bearings and has over 60 years of experience in the development, design and manufacturing of ball and roller bearings. Customers appreciate in particular the large product range, application-specific development and outstanding quality of large diameter bearings from Liebherr. Extensive product portfolio The current product range includes slewing ring bearings which may be single- or double-row four-point contact, triplerow roller or a combination of both ball and roller elements. In addition to standard types, a variety of customised and application specific special designs are available. Liebherr manufactures slewing bearings for a wide range of applications. Liebherr can manufacture the bearing with external, internal or no gearing. The gears are available in common or uncommon modules. Versatile applications The areas of application in which the large diameter bearings from Liebherr are used are as diverse as the designs. These include construction machines such as excavators and drilling rigs, mining equipment, cranes such as construction, mobile and offshore, maritime applications, vehicles, machine tools and wind turbines. System solutions from a single source Liebherr provides system solutions from a single source. The slewing bearings are ideally combined with slewing drives and swivelling drives from Liebherr. Upon request, electric or hydraulic motors, as well as control technology, are also available as complimentary components. The selection is thus made simply and quickly for our customers. Combination of slewing bearing and slewing drive Combination of slewing bearing and swivelling drive Liebherr Product Catalogue Slewing Bearings

5 Quality and reliability All components satisfy the very highest standards with respect to functional reliability and durability, even under extreme loads. World-class quality management and extensive analysis and test procedures are practised throughout the entire development and production process, guaranteeing reliability and long component service life. Consistent quality management Excellent quality is a trademark of Liebherr products. The quality management of Liebherr-Components Biberach GmbH is certified according to DIN EN ISO 900. To achieve and maintain these high standards, Liebherr uses advanced Finite Element Methods (FEM) as well as Failure Mode Effects Analysis (FMEA). These high standards also continue with the choice of suppliers and through after-sale service. All production and assembly processes are documented in a computer-supported operating data recording system. This is also used as a central quality management system that records production and assembly measurements. This allows comprehensive control, monitoring and traceability. The processes are continuously improved through diverse assessments. Highest quality of raw materials All individual components of the large diameter bearings are selected according to the application, and are subject to the highest quality standards. Raw parts and components are only supplied from qualified suppliers, who are audited regularly. For certain raw materials, such as rolled steel rings, our own company standards apply which go beyond the common industry standards. CMM machine for slewing bearings Quality check of slewing bearings using UV light Liebherr Product Catalogue Slewing Bearings

6 Use and features of application-specific materials The design of each large diameter bearing is largely determined by the expected environmental conditions. In this respect, in addition to the usual CrMo alloy, Liebherr also uses steels with adapted alloy components as a base material for bearings in low temperature applications. Upon request from the customer, bearing cages made from steel or brass alloys can also be used in place of polymer spacers. The special sealing systems and coatings for reliable protection against corrosion and increased wear are in constant further development by Liebherr. The lubrication ports are arranged as required and depend on the adjacent structure interface. Gearing is predominantly designed as spur gearing, but helical and worm gears are also possible. Certifications and classifications Often times, classifications and certifications are required by certified bodies for specific applications. Some examples of these certifications are: Liebherr is able to look back on a long-term collaboration with the certification bodies, which is characterised by the certification of complete systems with Liebherr components. Depending on the requirement of the test and documentation scope, various certificates are provided in accordance with EN 00. For typical applications in machine and plant construction: Certificate of Compliance. Factory Certificate. Acceptance Certificate. For special requirements: Acceptance Certificate. The certificates must be presented to the classification bodies within the framework of an inspection. If necessary, the certificates are provided by Liebherr. Det Norske Veritas - Germanischer Lloyd (DNV GL) American Bureau of Shipping (ABS) Bureau Veritas Lloyds Register of Shipping American Petroleum Institute (API) Quality check of slewing bearings Classification bodies 6 Liebherr Product Catalogue Slewing Bearings

7 Production and sales The slewing bearings are manufactured at Liebherr locations in Biberach an der Riß (Germany), Monterrey (Mexico) and Guaratinguetá (Brazil). The sale of components to customers outside the Liebherr Group is managed centrally by Liebherr-Components AG in Nussbaumen, Switzerland. Our customers are managed centrally from there. Finite Element Method Spacers, rolling elements, seals and lubricant Slewing bearing in production Gear milling Liebherr Product Catalogue Slewing Bearings 7

8 Production sites Liebherr-Components Biberach GmbH Liebherr-Components Biberach GmbH develops and manufactures high-performance components such as electric machines, gearboxes and slewing bearings, rope winches and switchgears both for the Liebherr Group and for external customers. The large diameter bearings supplied from Biberach are used in construction machines such as excavators and drilling rigs, mining equipment, cranes, maritime applications, vehicles, machine tools or wind turbines. Liebherr Monterrey, S. de R.L. de C.V The production company Liebherr Monterrey, S. de R.L. de C.V. manufactures high-quality and efficient single-row and multi-row ball and roller bearings as well as special rings in diameters up to 8 in. These products are mainly used in wind turbines, construction machines and maritime applications, but also in mining equipment, vehicles or machine tools. Facts and Figures: Founded: 9 as Liebherr-Werk Biberach GmbH (foundation of Liebherr-Components Biberach GmbH in 0) No. of employees:,0 Plant premises:,788 yd² Constructed area: 7,66 yd² Facts and Figures: Founded: 009 No. of employees: 0 Total area: 8,796 yd² Constructed area: 07,69 yd² Liebherr-Components Biberach GmbH, Germany Liebherr Monterrey, S. de R.L. de C.V, Mexico 8 Liebherr Product Catalogue Slewing Bearings

9 Liebherr Brasil Ltda. Liebherr Brasil Ltda. manufactures excavators, wheel loaders, tower cranes, stationary mixing plants and truck mixers, as well as maritime cranes. The company also organises the sales, technical customer services and spare parts supply for other product lines of Liebherr in Brazil. Starting in 06, large diameter bearings up to 77 in are being produced for use in wind turbines and industrial applications. Further information Visit our website bearings.liebherr.com and find out more about our products, current events, news and points of contact. Facts and Figures: Founded: 97 No. of employees:,090 Total area:,7,907 yd² Constructed area: 67,779 yd² Liebherr Brasil Ltda. in Guaratinguetá, Brasil Liebherr Product Catalogue Slewing Bearings 9

10 0 Liebherr Product Catalogue Slewing Bearings

11 Overview of bearing types Standard types Single-row four-point bearings with external gear Single-row four-point bearings with internal gear Double-row four-point bearings with external gear Double-row four-point bearings with internal gear Triple-row roller bearings with external gear Triple-row roller bearings with internal gear Double-row ball bearings (double, axial ball bearings, double thrust bearings) with external gear / with internal gear / no gear Combined roller and ball bearings with external gear / with internal gear / no gear Liebherr Product Catalogue Slewing Bearings

12 Other types Cross roller bearings with external gear / with internal gear / no gear Radial bearings with external gear / with internal gear / no gear Roller bearings with bolt connection with external gear / with internal gear / no gear Roller bearings with bayonet joint with external gear / with internal gear / no gear Tapered roller bearings with external gear / with internal gear / no gear Single-row four-point bearings with special seals with external gear / with internal gear / no gear Liebherr Product Catalogue Slewing Bearings

13 Double-row four-point bearings with special seals with external gear / with internal gear / no gear Triple-row roller bearings with special seals with external gear / with internal gear / no gear Segmented bearings with induction hardened raceways with external gear / with internal gear / no gear Segmented bearings with hardened insertion plates with external gear / with internal gear / no gear with insertion plates Gear rings with external gear / with internal gear Liebherr Product Catalogue Slewing Bearings

14 Structure of four-point bearings and roller bearings Cross-section through a four-point bearing with external gear Lip seal Rolling element Fastening hole in internal ring Fastening hole at external ring Lubrication duct of raceway Internal ring without gearing External ring with gearing Bearing gap Lip seal Liebherr Product Catalogue Slewing Bearings

15 Cross-section through triple-row roller bearing with internal gear Supporting ring Lip seal Fastening hole at supporting ring and retaining ring Rolling element (axial load-bearing roller row) Rolling element (radial roller row) Nose ring with gearing Retaining ring Rolling element (axial fixing roller row) Lip seal Fastening hole at lower ring Liebherr Product Catalogue Slewing Bearings

16 Materials Bearing rings Different materials are used for the bearing rings depending on the application and purpose of the Liebherr large diameter bearing. These are made from tempered alloy steel as standard, which is specified by our own company standards (LN), derived from DIN EN For applications needing additional properties, special materials are used such as chromenickel steels for low temperature environments. The chemical composition, handling of the material during the formation of the raw parts, and the mechanical properties of the basic material through to the EN requirement are stipulated in the company standards. To ensure consistent quality, each raw part is monitored during the manufacturing process based on test criteria, which are defined in the Liebherr standard. Regular audits at the suppliers ensure compliance with the delivery specifications. Depending on the requirement of the test and documentation scope, various certificates are provided for the raw parts in accordance with DIN EN 00. Upon request, all documents required for the certification or classification of components or systems are provided. Rolled ring on turning machine 6 Liebherr Product Catalogue Slewing Bearings

17 Rolling element Only balls and rollers made from hardened anti-friction bearing steel are used as rolling elements. The material is specified in our own company standards based on DIN 0, DIN 0 and ISO 90-. The chemical composition and the properties of the material are prescribed via the requirement of DIN/ISO. To ensure consistent quality, each production batch is monitored during the manufacturing process based on defined test criteria. Spacers The spacers and roller cages are made from specially developed polyamide and are responsible for guiding the rolling elements and keeping them equidistant during rotation. Keeping the rolling elements from colliding will ensure reliable operation. Consistently high quality is ensured through regular mechanical material testing. For special applications cages or cage strips made from metal and plastic can be used. Regular audits at the suppliers ensure compliance with the delivery specifications. Rolling elements Polymer spacers Liebherr Product Catalogue Slewing Bearings 7

18 Raceway For the manufacture of the rolling element raceways, Liebherr relies on its in-house manufacturing expertise to machine the raceway contours. Manufacturing process - Turning This is followed by the hardening of the raceway on separate induction hardening machines. Grinding pattern of a ball bearing slewing ring with hardened case Grinding pattern of a roller bearing slewing ring with hardened To complete the raceway, it is ground after induction hardening to a surface finish of Ra 0.8 micrometers. Fully processed ball raceway Fully processed roller raceway 8 Liebherr Product Catalogue Slewing Bearings

19 6 Seals Slewing bearings from Liebherr are mostly designed with lip seals on both sides of the raceway system. These mainly have two tasks to fulfil: Examples for seals: They prevent direct entry of moisture, dust and other foreign particles from outside into the bearing gap. They separate the raceway system from the surrounding area. Various types and materials of seals are available. The type and material of the seals depends on the geometry, application and surrounding environmental conditions of the bearing. For applications in construction machines, as well as in general machine and plant construction, seals with a simple lip design have been highly successful. In special applications, however, different seal geometries are necessary. For example, a simple lip seal would not be effective in particle rich environments or keep grease from exiting the raceway. Our seal materials are optimised in terms of the operating conditions. However, the seals are still subject to a certain amount of wear, for example by the effect of different environmental factors such as direct UV radiation and ozone influences. Therefore, they must be checked at regular intervals and replaced if necessary. Lip seal Double seal The surrounding area of the seals must be designed so that damage may not arise from assembly activities, or from the use of fastening tools. It is also necessary to ensure during installation that an even grease collar is formed at the seal (see chapter 8 "Lubrication"). Liebherr Product Catalogue Slewing Bearings 9

20 7 Bolt Fastening bores Fastening holes are available for securing the Liebherr slewing bearings at the adjacent construction. Depending on the application and the existing adjacent construction, they may either be designed as through or blind holes with all common thread types. Through hole Blind threaded hole At the execution of the securing as a blind threaded hole, the thread is free drilled in most cases, to achieve the greatest possible grip length of screwing. In principle, all bore hole types are possible upon request. Through holes for metric threads Metric ISO thread i.a.w. DIN - Through holes (DIN EN 07, tol.cl. medium) [mm] M0 M M M6 M8 M0 M M M7 M0 M M6 M9 M M M8 M M6 M60 M Through holes for imperial threads Thread size of through hole i.a.w. ASME B , R00 Through hole [Inch] 7/6 UNC / / UNC 9 / 6. /8 UNC / 6 7. / 0 UNC / 6 7/8 9 UNC / 6 8 UNC / 8 /8 7 UNC 7 / / 7 UNC / /8 6 UNC / 8 / 6 UNC / 8 Through hole [mm] 0 Liebherr Product Catalogue Slewing Bearings

21 Lubrication ports Lubrication ports are available for lubricating the bearing raceway. Depending on the installation conditions, these are either arranged radially or axially and have a M0x thread as standard and are also sealed with a plastic plug. Lubrication port with threaded nipple Lubrication lines for central lubrication systems, lubricating nipples or continuous lubricant dispenser can be connected at the lubrication ports. Upon request, conical grease nipples i.a.w. DIN 7 Form A M0x can be mounted at the factory. The threads of the conical grease nipples are designed i.a.w. DIN 8 M0x con. short version. These have plastic lids to provide protection against damage and dirt contamination. Other lubrication ports such as flat lubricating nipples, imperial threads or other design sizes are available by request. Liebherr Product Catalogue Slewing Bearings

22 8 Gearing Liebherr slewing bearings can be manufactured with internal and external gears. Both are mainly designed as a spur gearing. Special gearing, such as helical and worm gearing, are also available upon request. All our bearings are also available without gearing. Diametral Pitch Diametral Pitch, Pd, is the number of teeth per inch along the pitch circle diameter. It can be represented as follows for generall pinions / and gears (d, z): Conversion: Module to Diametral Pitch z P d = d. m = P d (z = number of teeth) (d = pitch circle diameter) (m = module) Gear milling Module The module, m, depicts the size of the gear teeth. It is defined as the amount of circular pitch, p, per tooth. Module is related to pitch as follows: p and pi π: p m = (p = circular pitch) (π = circular number) or alternatively as the ratio of pitch circle diameter d and number of teeth z. d m = z (d = pitch circle diameter) (z = number of teeth) Preferred module dimensions Module in mm according to preferred dimensions I i.a.w. DIN Liebherr Product Catalogue Slewing Bearings

23 Design and quality of the gearing The standard version of the gearing is effected with involute toothing i.a.w. DIN 867 with the standard pressure angle α = 0. To optimise the gearing, profile displacement and modification of the root rounding are performed. I and II are used for the reference profile i.a.w. DIN 97. Addendum reductions are also possible. By default, the gear cutting quality of all Liebherr large diameter bearings is Q: upper tooth thickness A sne i.a.w. DIN 967 (table ) i.a.w. deviation series b-e. Hardening of gearing In most cases, the gear teeth are left in the natural state as the ring itself. The strength properties of the gear teeth are that of the base material. If the application calls for additional strength and wear properties, the gear teeth will undergo induction hardening. The hardening of the teeth will increase the wear and strength properties to the desired level. Depending on the pitch circle diameter and module of the gearing, the teeth are treated by inductive hardening or spin hardening. In order to avoid metallurgical notches in the transition zone to the unhardened material, the teeth are hardened predominantly in the root of each tooth. As well as improved flank load capacity, increased strength at the tooth root is also achieved. Tooth thickness tolerance T sn i.a.w. DIN 967 (table ) i.a.w. tolerance series 6-8. Other qualities or tolerance zones can be implemented upon request. Design and calculation of gearing Hardening microsection of tooth spacing hardening The strength of the gearing is generally checked in accordance with ISO 66. Here, the technical data such as dimensions, number of teeth, profile displacement, as well as material properties of the drive pinion, are taken into account. Liebherr Product Catalogue Slewing Bearings

24 Backlash By adjusting the backlash between the teeth of the pinion and the teeth of the bearing, constraints of the gear pairing are avoided during operation. With a fitted bearing, the backlash should not fall below the value of module at the point of the maximum eccentricity of the gearing. For this purpose, this point is marked with a corresponding symbol: External gears: Symbol O+ (largest available pitch circle diameter), Internal gears: Symbol Ō (smallest available pitch circle diameter). The teeth on the left and right are marked in red. The backlash can be adjusted by the following two measures: Move the large diameter bearing within the tolerances of the fastening holes Eccentric fastening of the drive pinion to change center distance at those teeth The setting must be checked again after the fastener connection is tightened. Symbol O Drive pinion With a recommended profile displacement of V A,pinion = +0. m the number of teeth of the pinion should not be below twelve teeth. The gearing width of the pinion should project over the tooth width of the bearing on both sides by approx. 0. module. The gear cutting quality of the drive pinion is adapted to the application (at least gear cutting quality Q9): Upper tooth thickness A sne i.a.w. DIN 967 (table ) according to deviation series b-e and tooth thickness tolerance T sn i.a.w. DIN 967 (table ) according to tolerance series 6-8 An addendum chamfer is therefore essential. Tip relief and flank line correction are recommended. Tooth corrections are determined by Liebherr upon request. We recommend a surface hardness of at least HV min = 67 at the pinion gearing. If a separate gearing calculation was performed, the hardness values must be taken from the calculation. If a Liebherr slewing drive is also ordered for the bearing, Liebherr assumes the entire coordination of the components. Marking of point of maximum eccentricity for internal gear Liebherr Product Catalogue Slewing Bearings

25 9 Geometric properties Permissible dimensional deviations Diameter tolerance of bearing, general tolerances Outer and inner diameter [inch] Tolerance range [inch].7 to 9. ± to 78.7 ± to 7. ± to 6. ± 0.8 > 6. ± 0.7 Position tolerance of fastening holes Nominal thread dimension or bore hole diameter M6 Ø < M0 Ø 0.08 < M6 Ø < M Ø < M Ø 0.09 M Ø 0.0 Permissible dimensional deviations i.a.w. Liebherr company standard LN 8- [inch] Run-out deviation of gearing The run-out of the gearing depends on the play and run-out of the raceway system, in addition to the run-out deviation prescribed by the gearing standard Liebherr Product Catalogue Slewing Bearings

26 Bearing clearance Liebherr slewing bearings already have a precisely defined bearing clearance set ex works. This guarantees good running characteristics and the functional reliability of the bearing. Constrictions in the raceway system, caused by possible deviations from the projection of the adjacent construction, may lead to constraints of the raceway system. As a result, it may cause stiffness and impermissibly high loads on the rolling elements and the raceway. The play is adapted according to the application. Depending on the operating conditions, the bearing clearance may change during the operating time due to mechanical wear of the raceways and the rolling elements. The wear limit is reached from a certain dimension. It is dependent on the type and size of the bearing and the application. The bearing then has to be replaced. Standard Liebherr bearing clearance Bearing type Bearing clearance when delivered [inch] Ball bearing 0.0 to Roller bearing 0.0 to Bearing preload For special requirements, for example in hydraulic excavators or wind turbines, bearings are customised to the respective application. They are also manufactured with a defined preload of the bearing raceways. A bearing with play only has small frictional resistance. With the preload of the bearing raceways, the frictional resistance of the bearing increases, and then some when under load. This must be taken into consideration in the design of the drive! Furthermore, false brinelling is effectively prevented by the preload. False brinelling is mainly caused by constant vibrations when the bearing is at a standstill and leads to a reduction in the service life. For bearings with different temperatures between external and internal ring the bearing clearance is set specifically. 6 Liebherr Product Catalogue Slewing Bearings

27 0 Surface coating and corrosion protection Liebherr slewing bearings can be coated to protect the outer metallic ring surfaces against corrosion. Various technologies are used here in accordance with DIN EN ISO 9 and DIN EN ISO 06. Corrosion inhibiting wax or Liebherr base coat (primer) can be used. Cleaning and blasting Surfaces or prior coatings must be cleared of contaminants such as dust, grease, oil, salt or other dirt before the coating. All parts to be treated are cleaned thoroughly using a cleaning agent, degreased and dried with oil-free air. The wait time between cleaning and blasting is between two and four hours. The thermal spray process with zinc (TSC) is effected in accordance with DIN EN ISO 06. If the Liebherr primer is used, there is no need to remove the protective wax film. Corrosion categories Classification Corrosion category Requirement Ambient conditions C insignificant C weak Atmosphere with little pollution C moderate Urban atmosphere and industrial climate, moderate pollution by sulphur dioxide (IV); coastal areas with low salt concentration C strong Industrial climates and coastal areas with moderate salt concentration C-M very strong Coastal and offshore areas with high salt concentration Layer structure Corrosion category Designation Layer thickness [μ inch] C. GA.968 Total.968 C. GA.968. DA.96 Total.8 C. GA.. DA.79 Total 6.99 C. GA.96. GA.7. DA.96 Total.06 C-M. GA.96. GA DA.96 Total.98 GA = Primer DA = Topcoat Liebherr Product Catalogue Slewing Bearings 7

28 Thermal zinc spraying Slewing bearings from Liebherr may also be protected with a special layer structure as an alternative to the standard layer structures shown in table "Layer structure". This surface protection achieves the protection class C-M and thus corresponds to the highest protection needs. The structure is made up of a combination of thermal zinc spraying (base coat) and paint (topcoat). As a base for the additional paint coating, the thermal zinc spraying i.a.w. DIN EN ISO 06 provides additional cathodic corrosion protection of the surfaces by the "self-restoring" effect of the zinc layer in the event of damage. Liebherr sets standards in terms of surface protection thanks to the use of state-of-the-art equipment technology in the coating of components. If the large diameter bearings are not protected against corrosion with a surface coating, the outer surfaces of the large diameter bearing are treated with corrosion inhibiting wax. This must be removed before installation. Thermal zinc spraying 8 Liebherr Product Catalogue Slewing Bearings

29 Operating temperature The standard version of Liebherr slewing bearings is suitable for operating temperatures between - F and 76 F. If deviating operating or stagnation temperatures are planned or probable, the material properties and strength properties must be checked. This must be checked by Liebherr in each case. Requirements of adjacent construction Ideal adjacent construction In relation to its diameter, the cross-section of large diameter bearings is very small. Therefore, the inherent stability is significantly lower than the stability and stiffness of the adjacent construction. As a rule, bearings are not suitable for compensating instabilities and deformations of the adjacent construction. This is why the adjacent construction must be as homogeneous and rigid as possible and the external forces must be transferred as evenly as possible to the bearing. The bearing cannot be used to reinforce a structure! The average inner diameter of the adjacent structures diameter should be in the range of the raceway diameter. Mechanical processing of connection surfaces To avoid additional stress on the raceway system, the connection surfaces must have certain dimensional tolerances (cf. tables p. 0). The contact surfaces must be machined. Ensure that connection surfaces which are already machined are not damaged or deformed by subsequent machining processes. In the case of welding work, warpage is to be expected due to the introduction of heat. The dimensional tolerances must be checked after machining and if necessary the contact surfaces must be reworked. Ideal adjacent construction (homogeneous and rigid) Liebherr Product Catalogue Slewing Bearings 9

30 Flatness of connection surfaces In an unloaded state, the flatness of the connection surfaces cannot exceed the values in the tables listed below. Flatness tolerance for four-point ball bearings Raceway diameter [inch] to to to to to to to Flatness tolerance i.a.w. DIN EN ISO 0 in inch for four-point ball bearing For a measurement length of.97 inch, measured at any point on the contact surface, a tolerance of inch is allowed. The maximum value of the flatness deviation can only occur every 80. The curve may only rise or fall evenly. If this requirement is satisfied, this does not have a significant effect on the service life of the bearing. In order to balance corresponding unevenness, epoxy resin can be used, which is applied to the connection surfaces. Flatness tolerance for roller bearing Raceway diameter [inch] to to to to to to to Flatness tolerance i.a.w. DIN EN ISO 0 in inch for roller bearing Tolerance value see table 0.000/.97 Tolerance value see table 0.000/.97 Flatness tolerances of connection surfaces 0 Liebherr Product Catalogue Slewing Bearings

31 Assembly and serviceability of the adjacent construction The following should be observed when designing the adjacent construction: The lubrication points of the bearing must be easily accessible. All fastening bolts must be easily accessible. Tightening and preloading using suitable devices must be possible without any obstructions (also for later checks and maintenance during operation). All bore hole patterns of connection surfaces and bearings are congruent. The through holes are designed according to DIN EN 07 "medium". Tolerances at bore hole pattern of connection surfaces Thread sizes Position tolerance [inch] M M M M M 0.09 > M 0.0 Tolerance value see table Tolerance value see table Liebherr Product Catalogue Slewing Bearings

32 Influence of adjacent construction K rep factor The adjacent construction which surrounds the bearing is also a deciding factor for the function of a large diameter bearing. In order to take into account its influence in the analytical calculation, the K rep factor is used. This should consider the increase in load resulting from the adjacent construction on the rolling element. The values result from the assessment/years of experience of FE analyses and serve as guide values. In case of doubt, the exact values for the corresponding application must be calculated with our design or calculation department. These load increases may occur due to reinforcements which are unfavourable for the bearing and geometries in the adjacent construction. For example, this may be stiffening ribs for hydraulic cylinders for cranes or excavators. K rep factor for adjacent construction Application (extract) Homogeneous and rigid adjacent construction (ideal).0 Wind turbine blade bearing. Wind turbine yaw bearing. Rudder propeller yaw bearing (thruster). Maritime cranes (e.g. offshore crane, ship crane). Tower crane. Tunnel Boring. Conveying technology (e.g. stacker/reclaimer). Plant construction (e.g. bottle filling plant). Hydraulic excavator.8 Special vehicles (e.g. turntable ladder vehicle).8 Mobile crane.0 K rep Liebherr Product Catalogue Slewing Bearings

33 Finite Element Method The analytical calculation of Liebherr slewing bearings is used for the preliminary design using the present loads and the installation conditions. For the detailed design the large diameter bearings are calculated using the Finite Element Method (FEM). The adjacent construction provided by the customer is included in the FE model. Only this way can the load state in the bearing be determined more realistically. Depending on the requirement and application, there are two methods available: Method : In-house software "FastFEM" With this software the bearing raceways of a large diameter bearing can be calculated in a short period with a high degree of automation. With this method the following parameters are considered in the FE model: Adjacent construction from customer Bearing rings without details Non-linear stiffness of rolling element Exact raceway geometry taking into account the profile of the rollers (only for roller bearings) or osculation and raceway ends (only for ball bearings) Results of FE calculation: Load distribution in bearing (force on rolling element) Pressure distribution in all rolling elements taking into account the tilting of the bearing raceways under load (only for roller bearings) or taking into account the force contact angle under load (only for ball bearings) Evidence of static and dynamic load capacity of bearing raceways Necessary case hardening depth Method : Detailed FE calculation With this method slewing bearings can be calculated with all necessary details. In addition to method, the following is considered: The bolt connection modelled after VDI 0 All contact joints Details of the bearing rings such as bore holes Results of the FE calculation in addition to method : Evidence of static and dynamic load capacity of bolt connection according to common rules Evidence of static and dynamic load capacity of bearing rings according to common rules Behaviour at contact joints (gaping, sliding) Deformations at the sealing gaps Liebherr Product Catalogue Slewing Bearings

34 D initial model for FE calculation D results chart of FE calculation D stress diagram for slewing bearing D stress diagram for bolts Force [kn] Contact angle [ ] Hertzian pressure [N/mm ] Contact angle [ ] Angular coordinates [ ] Force, retaining raceway Force, supporting raceway Contact angle, retaining raceway Contact angle, supporting raceway Force distribution loading condition digging (hydraulic excavator) Angular coordinates, raceway seat [ ] Hertzian Static limit Static limit pressure nominal Hertzian pressure curve loading condition digging (hydraulic excavator) Liebherr Product Catalogue Slewing Bearings

35 Assessment of the adjacent construction by Liebherr The service life of the bearing is reduced with increasing deviation from the specified tolerances of the adjacent construction (in chapter ). Using a calculation model developed especially by Liebherr it is possible to determine this reduction of the service life when the tolerances cannot be observed for technical or economic reasons. These special cases must be checked by Liebherr in detail. The unevenness of an adjacent construction leads to tensioning of the raceway and thus to a higher Hertzian pressure between the rolling element and raceway. This also has an effect on the load by external forces and torques, thus leading to preliminary wear of the bearing. In the case of a smaller load in relation to the load rating, the influence of the unevenness is more pronounced than in the case of a larger load. Based on the following data, Liebherr is able to make a statement about the service life reduction for four-point ball bearings and triple-row roller bearing. Relevant data of measured adjacent construction: Number of shafts across the circumference Double amplitude of unevenness idealised as sine curve or measurement plot From the result Liebherr is able to make a statement about the reduction of the service life of the bearing as a percentage. Ratio load rating/load = / 00 % 90 % 80 % Δz 0 80 max. Δz = Flatness tolerance = Measured value for flatness Δz Service life reduction 70 % 60 % 0 % 0 % 0 % 0 % 0 % 0 % Unevenness (double amplitude) [inch] two shafts three shafts four shafts U Δz Display of double-shaft circumference imperfection Example of measurement result of connection surface in D diagram Liebherr Product Catalogue Slewing Bearings

36 6 Bearing mounting Slewing bearings are generally fastened to the adjacent construction. The following parameters must be taken into account when dimensioning the bolt connection and the assembly parameters: Installation position of the large diameter bearing If the bearing is installed so that the axial load relieves the bolts, then this is called a supporting load. In contrast, if the bearing is installed so that the axial force puts an additional load on the bolts, then this is called a suspended load. For the capacity of the Liebherr slewing bearings, according to the specified limiting load curves (see tables "Technical data"), it is assumed that there is a supporting load. If the suspended installation position is selected, the bolt connection and the raceway design must be checked in each case by Liebherr. Arrangement of bearing with supporting load Arrangement of bearing with suspended mounting 6 Liebherr Product Catalogue Slewing Bearings

37 The assembly preload force F M must prevent the gaping of the joints and guarantee the frictional connection at the joining areas throughout the service life of the bearing. It should be noted that the preload force is reduced during operation by setting. Therefore, bolt connections must be tightened according to the installation and maintenance declarations, in order to balance the setting behaviour in the connection. Example : Removal of adjacent construction from the joining area Example : Gaping of bearing rings i.a.w. DNV GL Liebherr Product Catalogue Slewing Bearings 7

38 Assembly preload forces for bolts i.a.w. VDI 0 Strength class Metric ISO thread Tensioning force Maximum tightening torque Tensioning force Maximum tightening torque Tensioning force Maximum tightening torque F M [lbf] M A [ft-lbf] F M [lbf] M A [ft-lbf] F M [lbf] M A [ft-lbf] M0 6,9 9,88 9, 8,67,06 68,9 M 9, 68,9,98 0,06 6,86 8,00 M,09 09,9 8,88 60,789,6 88,078 M6 7,760 69,69 6,078 9,96 0,9 9,7 M8,6,68,698,97 7,09 0,9 M0 8,,9 0,690 87,8 7,69 70, M,0 67,6 0,8 666,76 9,0 779,60 M,0 88,7 8,0 87,870 68,67 980,0 M7,9 867,7 76,88,,679 89,9,,88 M0 6,6,77,887 9,,677,6 09,8,96,90 M 8,606,9,87 6,6,70,6 6,009,6,96 M6 9,99,08,97 6,68,98, 9,89,,60 M9,0,6,0 6,886,778,0 9,76,0,97 M,96,78,6* 87,90,669,0* 0,088,6,97* M,9,09,07* 9,86,8,6* 7,8 6,8,86* M8 7,777,9,79* 7, 7,0,78* 89, 8,,* M 08,7 6,6,68* 96, 9,06,899* 6,880 0,606,879* M6 0,096 7,98,79*,9,9,8* 00,8,,66* M60 80,7 9,8,6* 99,6,007,00* 67, 6,9,78* M6 7,0,8,77*,866 6,868,78* 8,7 9,70,09* *for bolt sizes greater than M, the values must be proven with a strain measurement of the bolts. The following applies for the table "Assembly preload forces for bolts i.a.w. VDI 0": Assembly preload forces FM and tightening torques MA for ν= 0.9 for shaft bolts with metric coarse thread i.a.w. DIN ISO 7, DIN -9. Head dimensions of hexagon bolts i.a.w. DIN EN ISO 0 to DIN EN ISO 08. Bolts with hexalobular head i.a.w. DIN 800 or cylinder bolts i.a.w. DIN EN ISO 76 and bore hole "medium" i.a.w. DIN EN 07. Friction values μg= μk= 0. at thread and contact surfaces. 8 Liebherr Product Catalogue Slewing Bearings

39 The relevant parameters must be checked for each bolt connection. The tightening factors must be set up differently depending on the tightening process. Tightening process i.a.w. VDI 0 Tightening factor α A Variation Torque-controlled tightening with. to.6 ±7% to ±% torque wrench, signal generating wrench or motorised torque wrench with dynamic torque measurement. Limit-value controlled. to. ±9% to ±7% tightening, motorised or manual. Angle-controlled. to. ±9% to ±7% tightening, motorised or manual. Hydraulic tightening. to. ±% to ±7% Tightening method The fastening bolts can be tightened using different methods. The following descriptions of the individual methods are taken from VDI 0. The accuracy at which a desired preload force (minimum clamping force for pressing together fastened parts) is achieved depends on the tightening method used. Hydraulic tightening With hydraulic tightening the assembly preload force F M is generated by axial elongation by means of a clamping cylinder. As the clamping cylinder is supported at the component, springback losses can be expected from the strain. Therefore, large clamp-length ratios are recommended: l K d = l K = Clamp length d= Bolt diameter An advantage of this method is that the bolt is not affected by torsional or bending stress in comparison to other methods. The friction, which occurs for example with the torque-controlled method, is also eliminated here. As a result, the assembly preload force of the bolt can be achieved with a smaller variation. Liebherr Product Catalogue Slewing Bearings 9

40 Precise tightening of bolt connections of Liebherr slewing bearings with the ITH Stretch method In order to guarantee the high product quality and long service life of Liebherr slewing bearings, the bolt connections must be preloaded precisely and evenly. Liebherr recommends using the ITH Stretch method, as with this tightening method no frictional, bending or torsional loads occur in the bolt connection (hydraulic friction- and torsion-free tightening). The assembly preload force FVM required is introduced axially to the bolt connection. This achieves the highest possible level of uniformity and precision. Operating principle. Screwing The interchangeable bush with internal thread of the ITH bolt tensioning cylinder is fastened onto the projecting thread.. Preloading By applying a defined hydraulic pressure p the stud-bolt is extended axially (Δl). The assembly preload force FVM is introduced to the bolt connection without any frictional, torsional and bending moments.. Nut After the hydraulic pressure is reached the nut is arranged near the contact surface using a torque wrench. Then the pressure is released. Advantages of the ITH Stretch method No friction between contact surface and nut, as well as internal thread and bolt thread. No bending and torsional loads in stud bolts, pure tensile load. High precision and repeat accuracy of target value of assembly preload force FM as friction-free. Small αa values of up to.0* can be realised with the design of bolt connections. Large preload forces with small tool dimensions. Optimal for construction site installations thanks to compact assembly tools for bolts and nuts with small dimensions. Parallel and precise preloading of several bolts possible (ITH Multi Tensioning). Ideal for large diameter bearing applications. Technology leader ITH Schraubtechnik, market leader in preloading of bolts for large diameter bearings, over years of experience, over 00 international patents. * for clamp length ratio lk / d and mechanically machined connecting elements. ITH recommends ITH round nuts RMS / RMZ. 0 Liebherr Product Catalogue Slewing Bearings

41 Bolt tensioning cylinder for Liebherr slewing bearings Type MSK, bolt quality 0.9 Increased working speed Flexible rotary sleeve, automated piston return and direct pinion accelerate the bolt fastening process. Precision Preloading with no friction, torsion and bending moment, linear relationship between control parameter p and target parameter FM, as well as parallel preloading of several bolts possible at the same time (ITH Multi Tensioning), guarantee a precise result. Safety concept Patented cycle counter, patented breaking load device and patented protective cover at handle piece increase occupational safety. Additional equipment NIOX surface coating, ergonomic carrying equipment and handle piece round off innovative overall concept leading in large diameter bearings. Carrying device Safety cover, autmatic piston return (integrated) Cycle counter Hydraulic joint Protective cap on handle piece Direct gear drive Control groove Sizes of type MSK Type Order no. Preload force Nominal diameter Ø d Bolt Width across flats SW Outer diameter-ø D Total height H [kn] [lbs] [mm] [in]* [mm] [in]* [mm] [in]* [mm] [in]* MSK - 0.9, M x 7/8 6 / MSK 7-0.9, M 7x / MSK 0-0.9, M 0x. /8 6 / MSK - 0.9, M x. / MSK 6-0.9, M 6x /8 / MSK 9-0.9, M 9x / 60 / MSK - 0.9, M x. /8 6 / MSK - 0.9, M x. / 70 / MSK 8-0.9, M 8x 7/ MSK - 0.9, M x 80 / MSK 6-0.9, M 6x. / 8 / MSK , M 60x. /8 90 / MSK 6-0.9, M 6x6 / 9 7/ MSK , M 68x6 / 00 / MSK 7-0.9, M 7x6 0 / MSK , M 80x6 / MSK , M 90x6 / 0 / MSK , M 00x6 6 / Other bolt / nut configurations can be purchased on request. *Increase in bolt thread for inch thread: 8 UN. Liebherr recommends multilevel bolt tensioning cylinders of type MSK from the manufacturer ITH Schraubtechnik from Meschede, Germany. Single-level bolt tensioning cylinders can be purchased on request. The values indicated are designed for hexagon nuts i.a.w. DIN 0. Liebherr Product Catalogue Slewing Bearings

42 Torque-controlled tightening Torque-controlled tightening is effected by indicating or signal generating torque wrenches or torque screwdrivers. In addition to the torque, the angle of rotation from a certain torque value is generally also measured in order to monitor the procedure. This procedure is widely used due to the affordable equipment and simple handling. The setting of the tightening devices should only be determined at the original part during trial turning. This is possible using three measured variables: breakaway torque, prevail torque or elongation measurement of the bolt. The preferred measurement of the elongation of the bolt should be done by ultrasound or mechanically. The preload force reached is calculated from the proportionate bolt flexibility. For high-stress bolt connections tightening with impact screwdrivers is not recommended, as the tightening factors are very high in the elastic range. Special impulse wrenches with hydraulic cell offer smaller tightening factors, designed for the respective bolt connection. Limit value controlled tightening With limit value controlled tightening procedures, the bolt is tightened irrespective of the friction in the layer until the overall stress (torsional and tensile stress) roughly corresponds to the yield strength of the bolt. The bolt must be preloaded with a snug torque beforehand. An advantage vis-a-vis other tightening procedures is that a special design of the bolt for the largest possible assembly preload force is not required. With an increase of the assembly preload force due to less thread friction, the torsion content is also reduced accordingly. Angle-controlled tightening The angle-controlled tightening procedure is based on the (theoretically) proportional connection between the angle of rotation and length variation of the bolt above the pitch of the thread. First of all, when tightening with a snug torque the bolt is preloaded so that there is complete contact with the joint faces. This is required, as for the measurement of the angle of rotation both the pressure deformations within the clamped parts and the elastic and plastic deformations occurring in the joint faces up to the complete surface contact are also measured. In addition to the angle of rotation, the torque is also nearly always measured in order to monitor the process. Experience has shown that the procedure only achieves its maximum precision in the super-elastic range, as angle errors are unlikely to have much of an effect. The angle of rotation should be determined in tests on original components, in order to properly calculate the real flexibility of a structure. As with this procedure the yield strength of the bolt is exceeded, the reusability of the bolts is no longer possible. The calculation of the onset of yielding of the bolt is effected by measuring the torque and angle of rotation. The difference quotient of the two variables is synonymous with the increase of tangent, which is formed in the torque-angle of rotation curve. As soon as the bolt material is in the plastic deformation range, the difference quotient falls and triggers the shutdown signal. Liebherr Product Catalogue Slewing Bearings

43 Arrangement of bolts The bolts are normally distributed evenly over the pitch circle circumference. However, upon request bearings can also be realised with an uneven bolt distribution. The bolts are ideally tightened crosswise according to the diagram below.... Minimum bolt depth The minimum bolt depth of threads for tolerance class "mid" after calculation of VDI 0 amounts: Minimum bolt depth of threads Material adjacent construction/ Nut Strength categories of bolts Thread fineness d/p <9 9 <9 9 <9 9 S.0 d. d S, CN 0.9 d.0 d. d. d CrMo+QT, CV 0.8 d 0.9 d.0 d. d d = Thread Outer-Ø [mm] Bolts with metric ISO-thread (regular thread) P = Gradient of thread [mm] up to M 0: d/p < 9 > M 0: d/p > Clamping length Tightening of the bolt connection crosswise Liebherr recommends the insertion of a clamping length l K d (d describes bolt diameter) for minimizing the loss of pretension force. Strength categories of bolts The strength category of the bolts used is defined by default as 0.9. However, for special requirements bolts from other categories may also be used. The bolts which can be used are listed in the table "Mechanical properties of bolts". In a particular case, the deviation from the standard bolt must be clarified with Liebherr. Mechanical properties of bolts i.a.w. EN ISO 898- Strength values Strength category 8.8 Strength category 0.9 Strength category.9 D M6 D > M6 Tensile strength R m min. 6 ksi min.. ksi min. 0.8 ksi min ksi 0.% yield strength R p 0, min. 9.7 ksi min. 9.7 ksi min. 6. ksi min. 9. ksi Liebherr Product Catalogue Slewing Bearings

44 Surface stress at the contact areas The boundary surface stress of the contact areas must be observed. The assembly surface stress is roughly calculated as follows: σ =. F M A p F M = Assembly preload force A p = Bolt head or nut contact area The contact area Ap is dependent on the type of bolt selected. The following values for the surface stress cannot be exceeded i.a.w. VDI 0 (guide values): Boundary surface pressures for bolt head contacts* Material of contact surface Boundary surface stress S 7 ksi S 0. ksi CrMo+QT. ksi (based on R m, LN 80) Cq.7 ksi GJS 00 *Guide values i.a.w. VDI 0 87 ksi If the boundary surface stress is exceeded, then larger head contact diameters may be used with corresponding washers, for example, i.a.w. DIN EN Frictional connection The connection points must be carefully cleaned of paint, contamination, welding beads and grease. The bearing rings must lay flat on all sides. In special cases suitable adhesives may be required to improve the frictional connection. As an alternative to adhesives, the contact area may also have a zinc spray coating, whereby the friction coefficient of the area is also increased. A mechanical option to transfer radial forces to the bearing is the fitting of the bearing in a radial centring. The design of the bearings with these radial centrings is generally possible, however it must be agreed with Liebherr in each case. Liebherr Product Catalogue Slewing Bearings

45 7 Production Production process Turning and drilling Gear milling Induction hardening Final assembly Surface treatment 6 Completed large diameter bearing Liebherr Product Catalogue Slewing Bearings

46 Measurement / Quality control Magnetic particle inspection Hardness measurement Measurement of hardness depth Surface inspection (surface roughness) Dimension checks and visual inspection 6 Liebherr Product Catalogue Slewing Bearings

47 Induction hardening A core competency of Liebherr Liebherr provides various induction hardening machines in production. With individual machine configuration options, both hardness depths greater than 0.97 inch and hardness depths with minimum warpage can be realised. The swivel-mounted machine benches can be positioned variably up to an inclination of 70. This way optimal cooling behaviour of the workpiece of any contour is guaranteed. The sensor-controlled position, together with a continuous temperature measurement, which is used both for the tooth flank hardening and the raceway hardening, ensures a consistently high quality and repeat accuracy. The tool required for hardening, the inductor, is manufactured in-house at Liebherr, from the development to the design through to the manufacture. This know-how guarantees quick and efficient realisation of solutions for new tasks and challenges. The highest level of quality of the components is guaranteed using various test procedures, such as ultrasonic and magnetic particle inspection, which are carried out directly after the hardening of the finished workpieces. Regular checks of hardness samples in a separate metallurgical laboratory guarantee compliance with the required hardness parameters according to customer specifications, as well as our own quality standards. Using two tempering furnaces, workpieces can be stress relieved or annealed at a temperature of up to 0 F. Furthermore, Liebherr works very closely with well-known machine manufacturers in the area of induction hardening and therefore always uses the latest technology Induction hardening at Liebherr Liebherr Product Catalogue Slewing Bearings 7

48 8 Lubrication Lubrication of bearing raceways Initial lubrication Appropriate lubrication is the basic requirement for proper functioning and a long service life of the bearing raceways. In principle, the lubricant must fulfil the following tasks: Formation of a sufficiently firm film of lubricant at the contact areas through the use of lubricants with special additives. Reduction of the friction between rolling elements and raceways, as well as rolling elements and spacers. Sealing of the raceway system on the outside against dirt and moisture ingress and thus build-up of corrosion protection for the raceway system. Liebherr slewing bearings are filled with Liebherr grease at the factory before delivery. The grease is a lithium soap grease of class KPK-0 i.a.w. DIN 8. The grease also has additives for corrosion protection. The fill level of the bearing by means of the initial filling is based on the requirements of the respective application and is defined by Liebherr on a case by case basis. A bearing can generally be lubricated with oil or grease. Normally the lubrication of the bearing raceways is effected by grease supply via lubrication ports with nipples. In Liebherr slewing bearings, only high-quality lubricants should be used which are suitable for the respective application. These must basically have the following characteristics: Sufficient temperature range of application Sufficient lubricating ability of the base oil Sufficient anti-corrosion properties i.a.w. DIN 80 Low tendency to absorb water i.a.w. DIN 807 Sufficient adherence Good ageing resistance 8 Liebherr Product Catalogue Slewing Bearings

49 Relubrication of bearing raceways The bearing raceways of the large diameter bearings must be regreased at defined regular intervals. The intervals can be found in the maintenance schedule. The relubrication intervals generally depend on the operating conditions, the prevailing environmental factors, as well as the type of bearing or the chosen type of sealing system. The following intervals may be used as a guide for the scheduled relubrication: Guide values for relubrication periods Operating conditions Guide value for relubrication period light every 0 operating hours normal every 00 operating hours extreme every 00 operating hours The values indicated in the table only serve as a guide. Guide values for relubrication periods In the case of operation in particularly climatic conditions (for example in the tropics) or where there is a particularly high accumulation of dust and dirt (for example in the mining area), as well as continuous rotation of the bearing, the lubrication cycles are shortened accordingly. Unscheduled relubrication In addition to the scheduled lubrication intervals explained in chapter 8, unscheduled relubrication must generally be effected in each of the following cases: Before and after extended breaks in operation (generally three months) or downtimes (for example crane or construction machines). Agree with Liebherr in the case of a specific application. Where there are high moisture levels, for example from spray or splashed water. Liebherr Product Catalogue Slewing Bearings 9

50 Relubrication process Lubricant quantities The aim of relubrication is to fully replace the grease which has aged by the operation of the large diameter bearing with new grease. If there is no specific lubrication instruction, the raceways must be lubricated as follows: Via the lubricating nipple the large diameter bearing is filled with fresh grease by slowly turning the bearing until the grease is evenly distributed around the circumference and grease emerges under the sealing lips and forms a built-up grease collar. The required lubricant quantities for the initial lubrication and the relubrication are defined by Liebherr for each large diameter bearing based on the requirements. For special applications, such as in material handling equipment or wind turbines, relubrication instructions tailored to the respective application must be applied. Built-up grease collar at the bearing seal 0 Liebherr Product Catalogue Slewing Bearings

51 Lubrication of gearing The lubricants used in the bearing raceways of the Liebherr slewing bearings are also suitable for the lubrication of the gearing. The same or an adequate lubricant should be used for compatibility purposes (see Table "Lubricants for slewing bearings"). The appropriate lubricant must be used according to the vehicle power level. Relubrication of gearing The relubrication periods for the gearing of the bearings depend to a large extent on the operating conditions and environmental factors in the application. Relubrication intervals for gearing Type of application/frequency of use Seldom and only rotated with light to medium loads Intensive rotations under high load and frequent impacts Intensive rotations high load and frequent impacts during multi-shift operation Relubrication interval weekly to monthly daily several times a day Relubrication process and quantities Grease must be coated or sprayed on the tooth flanks of the gearing. The application of the grease should be effected in thin and even layers. The contact areas at the tooth flanks of the gearing must always have a lubricating film. Lubricated gearing in operation Excessive lubricant quantities do not offer any benefits. Excessive grease should be removed again using a suitable tool or equipment. Initial lubrication before commissioning The gearings of the Liebherr slewing bearings are protected against corrosion (anti-corrosion oil or paint) at the factory before delivery and must be lubricated intensively before the initial commissioning. For the initial lubrication, greases with EP additives (Extreme Pressure) for open gearings are recommended. The vehicle power level of the lubricant i.a.w. ISO 6- should also be at least. The Liebherr grease for gearing is generally recommended (see table "Lubricants for slewing bearings"). Initial lubrication of gearing Liebherr Product Catalogue Slewing Bearings

52 Lubricants In general, Liebherr recommends Liebherr lubricants for slewing bearings. If it is not possible to purchase Liebherr lubricants, the lubricants listed in the table "Lubricants for slewing bearings" may be used as an alternative. The suitability and use of non-liebherr lubricants is based on the recommendation from the respective manufacturer. For the automatic lubricant supply to the gearing, the use of lubricant dispensers or lubrication systems in conjunction with central lubrication systems is also possible. Lubricants for slewing bearings Manufacturer Rolling contact (KPF N- or KPFHC N-60) Liebherr Universal Grease K to K (- F to 0 F) Universal Grease Arctic K to K (-76 F to 8 F) Castrol Molub-Alloy 860/0- ES K to K (- F to 8 F) Molub Alloy 777- NG) K to 9 K (- F to 8 F) Fuchs Renolit FLM K to K (- F to 8 F) Renolit FLM 0 K to 9 K (- F to 8 F) Renolit Polar Black K to 9 K (-8 F to 8 F) Lubritech Lagermeister EP- K to 0 K (- F to 66 F) Total COPAL OGL 8 K to K ( F to 0 F) Agip/eni Agip GR SM 8 K to 0 K (- F to 66 F) Gearing contact (OGPF S-0) Universal Grease 9900 Molub-Alloy OG 96 SF Heavy 6 K to K ( F to 76 F) Molub-Alloy 9790/00- K to 6 K (- F to 9 F) Renolit CX-HT K to 7 K (- F to 9 F) Ceplattyn KG 0 HMF 6 K to K ( F to 8 F) CERAN GEP K to K (- F to 6 F) Liebherr Universal Grease 9900 is suitable both for the raceway and the gearing. Liebherr Product Catalogue Slewing Bearings

53 9 Packaging, transportation and storage Packaging and storage Liebherr slewing bearings require careful handling during transportation and storage. Liebherr slewing bearings are packaged at the factory on a standard transport pallet. The dimensions of the pallet, additional protective measures, as well as the necessary preservation, depend on the technical specifications of the product. This is checked together with the customer before the first shipment of a product in order to submit a packaging proposal. Liebherr pursues the principle of the simplest packaging which is safe for transport. The packaging is manufactured by trained and qualified personnel, complies with current standards (e.g. phytosanitary measures) and is optimised in terms of minimal waste disposal. Returnable packaging is also offered in order to return special packaging and guarantee consistently high packaging quality, as well as cost efficiency. Transport Due to their dimensions and weights, large diameter bearings often place high requirements on the transportation company. If horizontal transportation of the product is difficult for logistical and/or road transport circumstances, Liebherr offers alternatives suitable for everyday use. These include diagonal or vertical loading with the aid of skids, as well as special equipment made from wood, plastic or metal, which ensure smooth transportation. Liebherr offers Free House Delivery as an option, which is based on years of experience and special conditions with select freight carriers. Slewing bearings must always be moved during crane transportation using suitable hoists and lifting gears, which must be secured to the intended transport lifting holes with suitable lifting eyes. The number and arrangement of the lifting eyes are defined during the project planning stage. The large diameter bearings are treated with anti-corrosion agents as standard. This preservation allows the slewing bearings to be stored for up to six weeks in sheltered and tempered areas. With special packaging this preservation may be extended to 8 months if necessary. Longer storage periods must be assessed by Liebherr. In addition to the packaging and preservation for the transportation to the intended location, special pallets, special markings or handling equipment are also possible upon request in order to simplify logistics at the customer's premises. Low-loader with diagonal mounting For shipping to third countries, special markings and optional additional packaging (e.g. hatches) may be attached for customs inspection, which prevent damage to the anti-corrosion agent and guarantee a safe transport chain. Liebherr may make corresponding solution proposals depending on the product and intended location purpose. Liebherr Product Catalogue Slewing Bearings

54 0 Control / Inspection Large diameter bearings must be serviced in specific cycles. This includes, for example, the relubrication, checking seals, tilting clearance measurement and also reduction measurement. These measures serve to avoid possible wear of the bearings or detect wear at an early stage. This in turn prevents unnecessary repair costs and production downtimes. This is why we recommend regular bearing inspections and wear measurements. Wear of the bearing raceway is generally noticeable by a reduction or change in the axial movement. Depending on the application, the wear development can be determined from a reduction or tilting clearance measurement. Wear at the gearing depends to a large extent on the application. Reduction measurement If the load of the bearing is mainly in an axial direction (load centre within the raceway diameter of the bearing), it is recommended to perform a reduction measurement. The reduction measurement is also effected between the lower adjacent construction and the bearing ring fastened to the upper adjacent construction. Tilting clearance measurement In the case of bearings mainly loaded with tilting moments (e.g. cranes), it is recommended to measure the tilting clearance at the bearing. The tilting clearance measurement is effected between the lower adjacent construction and the bearing ring fastened to the upper adjacent construction. The measuring point should be as close as possible to the raceway system, in order to keep the effect of deformations low. Procedure for tilting clearance measurement: ) Define position for the measurement during commissioning. ) Perform reference measurement during commissioning. ) Mark measuring points around the circumference (or measuring point every 90 ). ) Use dial gauges with a precision of at least inch. ) Apply maximum restoring moment in order to set the dial gauges to zero. 6) Generate forward tilting moment through load capacity. 7) Swivel the upper structure and repeat the measurements at the marked positions. For the reduction measurement the values from the tables in chapter 0 for the permissible bearing clearance increases apply. Liebherr Product Catalogue Slewing Bearings

55 Procedure for reduction measurement: ) Determine reference points similar to the tilting clearance measurement. ) Mark measuring points from a defined position on the lower structure (or every 90 ). ) Perform control measurements at each of the marked measuring points at defined intervals. Through regular reduction or tilting clearance measurements, progressive wear in the bearing can be detected early and affected components can be replaced. Limit values for bearing clearances For the tilting clearance measurement the production-related bearing clearances (see chapter 9 "Bearing clearance") are added. The specified permissable bearing clearance increases only apply for bearings with clearance. Maximum permissible bearing clearance increases single-row and double-row four-point ball bearings Raceway diameter [inch] Ball diameter [inch] to >.96 on request Liebherr Product Catalogue Slewing Bearings

56 Maximum permissible bearing clearance increases triple-row roller bearing Raceway diameter (retaining raceway) [inch] Roller diameter [inch] to >.96 on request 6 Liebherr Product Catalogue Slewing Bearings

57 Maximum permissible bearing clearance increases double-row ball bearing Raceway diameter [inch] Ball diameter [inch] to >.96 on request Further information and explanations can be found in the instruction manual. Liebherr Product Catalogue Slewing Bearings 7

58 Bearing selection In general, the final and binding bearing selection is made by Liebherr, after the factors of the respective loading condition have been clarified. The static load-bearing capacity must be checked in each case. For slewing bearings with frequent rotations, this evidence suffices. In all other cases, the dynamic load bearing capacity must also be checked. The extreme load on the bearing is calculated from the combination of tilting moment, axial force and radial force on the bearing taking into account application-specific impact factors and safety factors. These must be set by the user if necessary or taken from the product pages. Bearing loads Load distribution in bearing Load distribution in bearing 8 Liebherr Product Catalogue Slewing Bearings

59 Axial force F a The direction of the axial force runs parallel to the rotary axis of the bearing. In the raceway system the axial force highlights a symmetrical pressure-force distribution to the rolling elements and the raceway. The size of the rolling element forces generally depends on the contact angle and the number of rolling elements. For the roller bearing the contact angle in the raceway system is zero. There is only axial pressure-force distribution here (no radial force) to the raceway and the rolling elements. Tilting moment M k An eccentric axial force F a causes a tilting moment on the bearing by the lever arm. The resulting moment from all eccentric force applications is called tilting moment. Depending on the eccentricity of the force application, different zones of the bearing are stressed. The pressure distribution to the raceway system is asymmetrical. The highest pressure force affects the rolling element, which is located in the crest of the pressure-force distribution. Radial force F r The direction of the radial force runs purpendicular to the rotary axis of the bearing. The level of the force direction is almost in the rolling element centre. Existing radial bearing loads are however only considered during the check of the static load-bearing capacity, if the radial load exceeds the value F r = 0. F a (for four-point ball bearings) F r = 0.0 F a (for roller bearings). In these cases the static load-bearing capacity is checked by Liebherr. Liebherr Product Catalogue Slewing Bearings 9

60 Graphic initial selection using the static limiting load curve Each Liebherr large diameter bearing has an individual static limiting load curve depending on its dimensions, raceway geometry, type and number of rolling elements, as well as the ring material. The static limiting load curve shows the maximum permissible values as a combination of axial force F a and tilting moment Mk. This curve is simplified and shown as a straight line in the static limiting load diagram (abscissa: F a; ordinate: M k). The values of the expected static load bearing are entered in the limiting load diagram. The bearing is then statically suitable if the load point P L (F a, M k) is below the static limiting load curve of the bearing selected by the user. The limiting load curves are compiled as standard with bolts of strength category 0.9 i.a.w. DIN EN ISO 898- and a clamping length of l K= d. The tightening factor α- A is.6, the preload is 70 %. Moment Mk [ft-lbf],000,000,00,000,000,000,00,000,000,000,00,000,000,000,00,000,000,000 00,000 The limiting load diagrams do not contain any reduction factors. They describe the performance of the bearing irrespective of the adjacent construction. It is assumed that an optimum installation situations is given ,000,000,000,00,000,000,000,00,000,000,000,00,000 Axial load F a [lbf] Image of a static limiting load diagram 60 Liebherr Product Catalogue Slewing Bearings

61 Calculation of the equivalent bearing load Following the initial bearing selection, the static safety of the selected slewing bearing can be calculated. Using the equivalent load bearing P 0 and the static load rating C stat from the bearing tables for ball and roller bearing, these can be calculated using the following formulas. Ball bearing P 0 = K rep P 0: equivalent axial load [lbf] K rep: Load increase factor (see chapter, table "Influence factor K rep") f : Load factor (see table "Load factor f ") F a: Axial load [lbf] F r: Radial load [lbf] M k: Tilting moment [ft-lbf] D L: Raceway diameter [ft] f (Fa+.9 Fr + M k ) D L Load factor f f Single-row ball bearing.0 Double-row ball bearing. With the static load rating from the bearing tables the static safety can be calculated as follows: S 0 = Cstat P 0 Triple-row roller bearing (supporting raceway) M P 0 = K rep x. (F k a+ ) D L P 0: Equivalent axial load [lbf] K rep: Load increase factor (see table "Influence factor K rep") F a: Axial load [lbf] M k: Tilting moment [ft-lbf] D L: Running thread diameter [ft] With the static load rating from the bearing tables the static safety can be calculated as follows: S 0 = Cstat P 0 Liebherr Product Catalogue Slewing Bearings 6

62 Example of static bearing selection Available load data: F a, F r, M k, D L, K rep Start Bearing selection C stat Enter load point in limiting load diagram for selected bearing (check raceway and bolts) Load point above limiting load curve Load point below limiting load curve Check F r < 0. F a (for four-point bearings) F r < 0.0 F a (for roller bearings) OK: Alternative calculation of static safety NOT OK Calculation of equivalent axial load: for ball bearing: x M k P O= K rep f (F a +.9 F r + ) for triple-row roller bearing: x M P O= K rep. (F a + k ) D L D L OK Separate check of radial load by Liebherr Static selection OK! Calculation of static safety: C S stat O= P O S 0 < Flow chart: Static bearing selection S 0 > Static selection OK! 6 Liebherr Product Catalogue Slewing Bearings

63 Step : A four-point ball bearing with external gear (KUD00-00VA) is stressed with the following static load. The application is a tower crane. M k F a F r C stat =,76,87 ft-lbf = 9,68 lbf = 0,66 lbf =,6, lbf K rep =. D L = 6.99 ft Step : The load combination is entered in the limiting load diagram for four-point ball bearings with external gear. The axial force F a is plotted on the abscissa, the tilting moment M k at the ordinate. The intersection point of the axial force and tilting moment gives the static load point P L.,000,000,00,000,000,000,00,000 Tilting moment Mk [ft-lbf],000,000,00,000,000,000,00,000,000,000 00,000 P L F a : 9,68 lbf M K :,76,87 ft-lbf ,000,000,000,00,000,000,000,00,000,000,000,00,000 Axial load F a [lbf] Selection example: KUD00-00VA (static limiting load curve) Liebherr Product Catalogue Slewing Bearings 6

64 Step : Checking the radial load: F r F a = 0,66 lbf = ,68 lbf In the present case F r < 0. F a. A separate check of the radial force by Liebherr is not required. The load point P L is below the static limiting load curve. The bearing is therefore sufficiently dimensioned for these static loads. To calculate the static safety continue with Step. Step : Calculation of equivalent axial load: P 0 =..0 ( 9,68 lbf +.9 0,66 lbf +,76,87 ft-lbf 6.99 ft ) =,7, lbf Step : Calculation of static safety:,6, lbf S 0 = =.,7, lbf Result: The load point found is below the static limiting load curve for the bearing KUD00-00VA and the static safety of. is greater than.0. The bearing is suitable for these static loads. 6 Liebherr Product Catalogue Slewing Bearings

65 Dynamic bearing service life For sizing a large diameter bearing, the expected service life from the stress of the operating loads is decisive, in addition to checking the static load-bearing capacity. This step can be omitted for bearings only under static stress. The dynamic equivalent bearing load is calculated from the combination of axial force F a, tilting moment M k and radial load F r on the bearing during the operation of the plant. The individual load components, the available load spectrum data and the relevant proportions of the overall duty cycle must be used for this calculation. If there are multistage stresses or stresses made up of load spectrums, then these may be traced back to a single-stage equivalent dynamic bearing load using the elementary Miner Rule. The equivalent dynamic bearing load is calculated P äqui = Σ P ( p a,i U i p ) U ges [lbf] with the respective equivalent axial loads of the individual load levels i: for ball bearings: M P a,i = K 0.66 k,i rep F a,i F r,i + ( ) D L [lbf] for triple-row roller bearings: M P a,i = K 0.66 rep. k,i F a,i + ( ) D L [lbf] P a,i: Amount of equivalent axial load in the respective load level i [lbf] U i: Number of bearing rotations of load level i U ges: Total number of bearing rotations p: Service life exponent, gradient of Wöhler curve (for ball bearings p = ; for all other bearings p= 0/) F a,i: Axial load in load level [lbf] F r,i: Radial load in load level [lbf] M k,i: Tilting moment in load level [ft-lbf] Using the dynamic load rating and the equivalent bearing load, the bearing service life can be calculated for 0 % probability of failure. p L 0 = 0 6 ( C dyn ) P äqui C dyn: Dynamic load rating (take value from bearing tables) [lbf] Liebherr Product Catalogue Slewing Bearings 6

66 Influence of radial load Existing radial bearing loads are however only considered during the check of the dynamic service life, if the radial load exceeds the value F r=0. F a for four-point bearings or F r=0.0 F a for roller bearings The dynamic service life is always also checked by Liebherr. Sample calculation of dynamic bearing service life Available load data: M k, F a, F r, P i, U i, U ges, p, K rep Start Bearing selection C dyn Check F r < 0. F a (bei Vierpunktlagern) F r < 0.0 F a (bei Rollenlagern) OK NOT OK Separate check of radial load by Liebherr Calculation of dynamic equivalent axial load(s) for ball bearing: M k,i 0.66 P a,i = K rep (F a,i F r,i + ) for triple-row roller bearing: 0.66 M P a,i = K rep. (F a,i + k,i ) D L D L Calculation of equivalent dynamic bearing load: P äqui = Calculation of bearing service life: L 0 = 0 6 [ ] P a,i p U i _ p U ges C ( dyn ) P äqui p Bearing service life sufficient Bearing service life too low Dynamic selection OK! Flow chart: Dynamic bearing selection 66 Liebherr Product Catalogue Slewing Bearings

67 Step : A four-point bearing with external gear (KUD00-00VA) is stressed with the following dynamic load (load spectrum with load levels i= and i=). The application is a tower crane. M k, F a, F r, =,8,90 ft-lbf = 79,87 lbf =,0 lbf U =,00 M k, = 700,68 ft-lbf F a, = 7,66 lbf =,6 lbf F r, U = 6,000 U ges = 0,00 C dyn = 79,66 lbf p = K rep =. D L = 6.99 ft Step : Checking the radial loads: F r, F a, F r, F a,,0 lbf = = ,87 lbf,6 lbf = = ,66 lbf In the present case F r < 0. F a. -> A separate check of the radial force by Liebherr is not required. Step : Calculation of equivalent axial load(s): P a, =. 0.66,8,90 ft-lbf ( 79,87 lbf + 0.6,0 lbf + ) = 89,778 lbf 6.99 ft Pa, = ,68 ft-lbf ( 7,66 lbf + 0.6,0 lbf + ) 6.99 ft =,780 lbf Step : Calculation of equivalent dynamic bearing load: P äqui = ( ) P a, p U i + P a, p U _ p U ges P äqui = (89,778 lbf) (,00 + (,780 lbf) 6,000 ) _ 0,00 = 79,7 lbf Step : Calculation of bearing service life: L 0 = ,66 lbf ( ) =,0 [rotations] 79,7 lbf Result: The calculated bearing service life under the aforementioned operating conditions with 0 % probability of failure is,0 rotations. The bearing service life is thus above the prescribed 0,00 rotations, therefore the indicated load spectrum can be applied to this bearing. Circumferential speed Liebherr slewing bearings must be used up to a circumferential speed of. ft/sec For higher circumferential speeds, special rolling element guides or cages are required. Deviations must be clarified with Liebherr. Liebherr Product Catalogue Slewing Bearings 67

68 Rotation resistance of bearing Like every anti-friction bearing, large diameter bearings also have frictional resistance. The resistance, which an anti-friction bearing offers to its rotation, is made up of rolling friction, dynamic friction and lubricant friction. Rolling friction occurs when the rolling elements roll onto the raceways. The friction between the rolling elements and the raceway profile increases with narrowing osculation and load. Dynamic friction occurs both at the contact surfaces of the rolling elements in the cage or at the spacers (for roller bearings also at the bearing ribs and the roller end faces) and at the seal running surfaces. Under normal operating conditions and with sufficient lubrication, the frictional resistance is low. Inadequate lubrication, dirt contamination and high speeds may noticeably increase the dynamic friction and lead to increased wear. The lubricant friction results, on the one hand, from the inner friction of the lubricant, and, on the other hand, from the flexing during the movement of the bearing. The entire lubricant friction essentially depends on the viscosity and the quantity of the lubricant. The impact is small at low speeds. The friction torque for an unloaded and unscrewed bearing is the assembly friction torque M O. M E describes the installation torque of the bearing (fastened together). It mainly results from the lubricant friction, the friction of the rolling elements, the friction of the spacers (or cages) and the seals, and essentially depends on the design and size of the bearing. M E = f s W R D L M RN describes the load-dependent proportion of the overall friction torque. This part is dependent on the present load, the rotational velocity of the bearing, as well as the properties of the adjacent construction. M RN = f k μ f A 0.9 e (0. n GWL) ( M k + + ) FA L F R D L D L k For the overall friction torque of the large diameter bearing, the following applies: M Reib = M E + M RN Liebherr formula of friction moment: M Reib = f S W R D L + k μ f A 0.9 e (0. n GWL ) ( M k + f L F R D L + FA D L k ) [ft-lbf] f S: Bolt connection factor see table "Bolt connection factor" W R: Specific friction force [lbf/ft] see table "Specific friction force" D L: Raceway diameter [ft] k: K-factor see table "k-factor" f A: Adjacent construction factor see table "Adjacent construction factor" n GWL: Speed of the large diameter bearing [rpm] f L: Raceway factor f L =.7 (constant) μ: Friction coefficient see table "Friction values" F A: Axial load [lbf] F R: Radial load [lbf] 68 Liebherr Product Catalogue Slewing Bearings

69 Friction coefficients Type of slewing bearing Friction coefficient μ KUD_V (four-point ball bearing) 0.00 KUD_W (double-row four-point ball bearing) 0.00 KUD_Z (double-row) 0.00 ROD_D (triple-row) 0.00 RKD 0.00 Specific friction forces Type of slewing bearing specific friction force W R [lbf/ft] KUD_V (four-point ball bearing).9 KUD_W (double-row four-point ball bearing).0 KUD_Z (double-row) 9.8 ROD_D (triple-row) 0.88 RKD 0.88 All listed slewing bearings in this catalogue are carried out with spacers. Factors for bolt connection Type of slewing bearing Bolt connection factor f S KUD_V (four-point ball bearing).0 KUD_W (double-row four-point ball bearing).0 KUD_Z (double-row).0 ROD_D (triple-row).0 RKD.0 k-factors Type of slewing bearing Factor k KUD_V (four-point ball bearing). KUD_W (double-row four-point ball bearing). KUD_Z (double-row). ROD_D (triple-row).7 RKD.7 Factor for the adjacent construction Application Homogeneous and rigid adjacent construction (ideal) Adjacent construction factor f A In case of a not ideal adjacent construction (ideal adjacent construction see page 9) the factor f A has to be customized depending on the application case..0 Values only apply to standard bearings with standard seals, for special bearings the values must be calculated in each case. For unloaded bearings or bearings with low loads, the calculated values may deviate considerably from the actual values. The necessary acceleration power, occurring wind loads and any inclined position of the bearing axis must also be considered in the sizing of the drive. For special requirements of the rotation resistance of the large diameter bearing, corresponding adaptations can be made to increase or reduce the rotation resistance after consultation with Liebherr. Liebherr Product Catalogue Slewing Bearings 69

70 Drive torque required In order to operate the selected large diameter bearing with the present load spectrum, the following torque is required at the pinion of the gearbox: M pinion, req. = M friction i pinion/bearing η pinion/bearing,000 [ft-lbf] z pinion z bearing i pinion/bearing: Transmission ratio pinion/bearing = (number of teeth) η pinion/bearing: Efficiency of gearing pinion/bearing = 0.99 (spur gearing) On the basis of the value calculated above M pinion, req., a suitable slewing drive can be selected from the table "Technical data of the series designs DAT". For the static selection of the drive, the maximum torque T Max (includes.x tooth fracture safety) from the table of Liebherr slewing drives must be used. A size for the gearbox can be determined here. For the dynamic selection of the drive, the dynamic output torque T FEM is used. This value refers to the load spectrum M/L/T (max. 6,00 collective hours or,600 full-load hours) at 0 rpm from the "FEM.00 Calculation basis for cranes". Other load spectrums for other applications may reveal a different torque value for the gearbox. This must be checked by Liebherr in each case. Technical data of the series designs DAT DAT 00 DAT DAT 0 DAT 00 DAT 0 DAT 00 TFEM [ft-lbf],687,900 8,,76,6, TMAX [ft-lbf] 7,7,800 6,6 6,, 6,90 TFEM TMax = Reference torque TFEM based on M/L/T at 0 rpm at the output = Security >. against fracture 70 Liebherr Product Catalogue Slewing Bearings

71 Inertia factor The inertia factor to be overcome P B can be calculated: P B = M Reib ω η - = M Reib n 9. η [ft-lbf/min] π n ω: Angular velocity ω= [s-] 0 n: Required rotational velocity of large diameter bearing [rpm] η: Efficiency of drive (gearbox with engine) on request DAT 0 DAT 00 DAT 600 DAT 700 DAT 800 DAT 000, 60,80 0,7,888 8,6 9,9 88,07 8,00 09,68 09,776 7,89 899,86 Liebherr Product Catalogue Slewing Bearings 7

72 Glossary KUD V A Product group KUD - Ball bearing ROD - Roller bearing (cylindrical rollers) RKD - Combined roller and ball bearing Raceway diameter (mm) Roller element diameter (mm) Type Z - double-row D - triple-row V - four-point bearing W - double-row four-point bearing Gearing O - no gearing J - inner gearing A - outer gearing Internal designation 7 Liebherr Product Catalogue Slewing Bearings

73 KUD_V Ball bearings; four-point contact KUD_V KUD_Z Double-row ball bearings KUD_W Double-row ball bearings; four-point contact ROD_D Triple-row roller bearings* ROD_D Triple-row roller bearings RKD Combined roller and ball bearings * Shorter delivery times can be realized. Liebherr Product Catalogue Slewing Bearings 7

74 7 Liebherr Product Catalogue Slewing Bearings

75 6 Standard range Technical data KUD_V Ball bearings; four-point contact KUD_V KUD_VA KUD_VJ KUD_VO Liebherr Product Catalogue Slewing Bearings 7

76 H H External gear KUD VA Ø O Ø Li Ø Di,00,000 Static tilting moment [ft-lbf],000, , ,000 00,000 00, ,000 00, , ,000,000,000,00, H KUD008-0VA KUD009-0VA KUD00-0VA KUD0-0VA KUD0-0VA KUD0-0VA KUD0-0VA Ø U Ø La Ø d Ø Da Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] ,70., ,6 9, ,70., ,9 99, ,99.9 6, ,76 0, ,99.9 6, ,996 06, ,99.9 6, ,9 09, ,99.9 6,99.9,080,, ,99.9 6,99.9,8,66 6, 76 Liebherr Product Catalogue Slewing Bearings

77 H External gear KUD VA Ø O Ø Li Ø Di,00,000 6 H Static tilting moment [ft-lbf],000, , ,000 00,000 00, ,000 00, , ,000,000,000,00,000 6 H KUD0076-0VA KUD009-0VA KUD0067-0VA KUD09-0VA KUD07-0VA KUD0-0VA Ø U Ø La Ø d Ø Da Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Diametral Pitch Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic KUD_V Da Di H O U H H La Li n M n d Pd z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] La/Li [inch] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] /0 / - 0 UNC ,96. 8,9.0 68,9 9, / / - 0 UNC ,0.0 8, ,66 99, /6 / - 0 UNC ,86.0 8, ,8 0, /0 / - 0 UNC ,0. 8, ,9 0, / / - 0 UNC ,0. 9,00.0,, 6, /8 / - 0 UNC ,.0 9,090.0,,868 0,7 Liebherr Product Catalogue Slewing Bearings 77

78 H External gear KUD_0_VA Ø O Ø Li Ø Di,00,000,000,000 H H Static tilting moment [ft-lbf],00,000,000,000 00, , ,000,00,000,600,000,000,000 KUD000-00VA KUD VA KUD VA KUD VA KUD VA Ø U Ø La Ø d Ø Da Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Static axial load [lbf] Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] ,87.,66.9,7,87, ,87.,66.9,66,09 8, ,87.,66.9,668,07, ,87.,66.9,760,79, ,87.,66.9,86,767 8,7 78 Liebherr Product Catalogue Slewing Bearings

79 H External gear KUD VA Ø O Ø Li Ø Di Static tilting moment [ft-lbf],000,000,00,000,000,000,00,000,000, ,000,000,000,00,000,000,000,00,000 H KUD060-0VA KUD070-0VA KUD080-0VA KUD090-0VA KUD000-0VA H Ø U Ø La Ø d Ø Da Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic KUD_V Static axial load [lbf] Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] ,0.7 0,609.,880,7 76,0, ,0.7 0,609.,006,9 80,76, ,0.7 0,609.,7,700 8,, ,0.7 0,609.,8,98 87,7, ,688. 7,76.,0,86 9,088 Liebherr Product Catalogue Slewing Bearings 79

80 H External gear KUD_0_VA,00,000 Ø O Ø Li Ø Di,000,000 Static tilting moment [ft-lbf],00,000,000,000,00,000,000,000,00,000,000,000 00, ,000,000,000,00,000,000,000,00,000,000,000 H KUD VA KUD VA KUD VA KUD000-00VA KUD000-00VA H Ø U Ø La Ø d Ø Da Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,779.9,6.0,7, 08,88, ,779.9,6.0,7,697,89, ,76.9,.8,60,7 7,80, ,76.9,.8,77,6,66, ,76.9,.8,87,08,9 80 Liebherr Product Catalogue Slewing Bearings

81 H External gear KUD VA 6,000,000 Ø O Ø Li Ø Di Static tilting moment [ft-lbf],000,000,000,000,000,000,000,000,000, ,000,000,000,000,000,000,000,000 H KUD090-0VA KUD000-0VA KUD00-0VA KUD00-0VA KUD00-0VA H Ø U Ø La Ø d Ø Da Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic KUD_V Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,7. 0,.6,878,90,98, ,6.7 8,9.,06,96 7,96, ,6.7 8,9.,,9,786, ,6.7 8,9.,6,8 6,97, ,6.7 8,9.,, 60, Liebherr Product Catalogue Slewing Bearings 8

82 H External gear KUD_0_VA Ø O Ø Li Ø Di 8,000,000 7,000,000 H H Static tilting moment [ft-lbf] 6,000,000,000,000,000,000,000,000,000,000,000, ,000,000,000,000,000,000,000,000 KUD000-00VA KUD000-00VA KUD000-00VA KUD000-00VA KUD000-00VA Ø U Ø La Ø d Ø Da Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,. 6,7.,0,76 79,, ,. 6,7.,8, 8,80, ,. 6,7.,7,8 87,980, ,. 6,7.,9,90 9,96, ,. 6,7.,09,0 97,67 8 Liebherr Product Catalogue Slewing Bearings

83 H External gear KUD_0_VA Ø O Ø Li Ø Di 7,000,000 Static tilting moment [ft-lbf] 6,000,000,000,000,000,000,000,000,000,000,000,000 H KUD VA KUD00-00VA KUD0-00VA KUD06-00VA H Ø U Ø La Ø d Ø Da 0 0,000,000,000,000,000,000,000,000,000,000 Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic KUD_V Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], , ,77.9,099, 68,97, , ,00.9,68,80 79,66, , ,00.9,88,88 90,8, , ,00.9,,0 0,9 Liebherr Product Catalogue Slewing Bearings 8

84 H Internal gear KUD VJ Ø Da Ø La Ø U,00,000 Static tilting moment [ft-lbf],000, , ,000 00,000 00, ,000 00, , ,000,000,000,00, H KUD008-0VJ KUD009-0VJ KUD00-0VJ KUD0-0VJ KUD0-0VJ KUD0-0VJ KUD0-0VJ H Ø Di Ø d Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] ,9. 67,6 9, ,9. 760,9 99, ,9. 88,76 0, ,9. 96,996 06, ,9. 99,9 09, ,9.,080,, ,9.,8,66 6, 8 Liebherr Product Catalogue Slewing Bearings

85 H Internal gear KUD VJ,00,000 Ø Da Ø La Ø U,00,000 Static tilting moment [ft-lbf],000, , ,000 00,000 00, ,000 00, , ,000,000,000,00,000,00,000 6 H KUD0076-0VJ KUD009-0VJ KUD0067-0VJ KUD09-0VJ KUD07-0VJ KUD0-0VJ H Ø Di Ø d Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Diametral Pitch Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic KUD_V Da Di H O U H H La Li n M n d Pd z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] La/Li [inch] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] /0 / - 0 UNC ,89., ,9 9, / / - 0 UNC ,97.,9.0 76,66 99, /6 / - 0 UNC ,09. 0, ,8 0, /0 / - 0 UNC ,7.0 0,8.0 99,9 0, / / - 0 UNC ,7.0 0,.0,, 6, /8 / - 0 UNC ,09. 0,8.0,,868 0,7 Liebherr Product Catalogue Slewing Bearings 8

86 H Internal gear KUD_0_VJ Ø Da Ø La Ø U,00,000,000,000 H H Static tilting moment [ft-lbf],00,000,000,000 00, , ,000,00,000,600,000,000,000 KUD000-00VJ KUD VJ KUD VJ KUD VJ KUD VJ Ø Di Ø d Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] ,87.,66.9,7,87, ,87.,66.9,66,09 8, ,87.,66.9,668,07, ,87.,66.9,760,79, ,87.,66.9,86,767 8,7 86 Liebherr Product Catalogue Slewing Bearings

87 H Internal gear KUD VJ Ø Da Ø La Ø U,000,000 Static tilting moment [ft-lbf],00,000,000,000,00,000,000,000 00, ,000,000,000,00,000,000,000,00,000 H KUD060-0VJ KUD070-0VJ KUD080-0VJ KUD090-0VJ KUD000-0VJ H Ø Di Ø d Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic KUD_V Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] ,0.7 0,609.,880,7 76,0, ,0.7 0,609.,006,9 80,76, ,0.7 0,609.,7,700 8,, ,0.7 0,609.,898 87,7, ,688. 7,76.,0,86 9,088 Liebherr Product Catalogue Slewing Bearings 87

88 H Internal gear KUD_0_VJ,00,000 Ø Da Ø La Ø U,000,000 Static tilting moment [ft-lbf],00,000,000,000,00,000,000,000,00,000,000,000 00, ,000,000,000,00,000,000,000,00,000,000,000 H KUD VJ KUD VJ KUD VJ KUD000-00VJ KUD000-00VJ H Ø Di Ø d Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,779.9,6.0,7, 08,88, ,779.9,6.0,7,697,89, ,76.9,.8,60,7 7,80, ,76.9,.8,77,6,66, ,76.9,.8,87,08,9 88 Liebherr Product Catalogue Slewing Bearings

89 H Internal gear KUD VJ 6,000,000 Ø Da Ø La Ø U Static tilting moment [ft-lbf],000,000,000,000,000,000,000,000,000, ,000,000,000,000,000,000,000,000 H KUD090-0VJ KUD000-0VJ KUD00-0VJ KUD00-0VJ KUD00-0VJ H Ø Di Ø d Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic KUD_V Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,7. 0,.6,878,90,98, ,6.7 8,9.,06,96 7,96, ,6.7 8,9.,,9,786, ,6.7 8,9.,6,8 6,97, ,6.7 8,9.,, 60, Liebherr Product Catalogue Slewing Bearings 89

90 H Internal gear KUD_0_VJ Ø Da Ø La Ø U 8,000,000 7,000,000 H H Static tilting moment [ft-lbf] 6,000,000,000,000,000,000,000,000,000,000,000, ,000,000,000,000,000,000,000,000 KUD000-00VJ KUD000-00VJ KUD000-00VJ KUD000-00VJ KUD000-00VJ Ø Di Ø d Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,. 6,7.,0,76 79,, ,. 6,7.,8, 8,80, ,. 6,7.,7,8 87,980, ,. 6,7.,9,90 9,96, ,. 6,7.,09,0 97,67 90 Liebherr Product Catalogue Slewing Bearings

91 H Internal gear KUD_0_VJ Ø Da Ø La Ø U 8,000,000 7,000,000 6,000,000,000,000,000,000,000,000,000,000,000, ,000,000,000,000,000,000,000,000,000,000 H H Ø Di Ø d Ø Li Ø O Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Static tilting moment [ft-lbf] KUD_V KUD VJ KUD VJ KUD00-00VJ KUD090-00VJ KUD VJ Static axial load [lbf] Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], , ,77.9,98,8 6,77, , ,77.9,69,86 7,87, , ,00.9,667,78 8,97, , ,00.9,06,89 96,78, , ,00.9,77, 0,0 Liebherr Product Catalogue Slewing Bearings 9

92 H No gearing KUD VO Ø Da Ø La Ø U,00,000 Static tilting moment [ft-lbf],000, , ,000 00,000 00, ,000 00, , ,000,000,000,00, H KUD008-0VO KUD009-0VO KUD00-0VO KUD0-0VO KUD0-0VO KUD0-0VO KUD0-0VO H Ø Di Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] ,6 9, ,9 99, ,76 0, ,996 06, ,9 09, ,080,, ,8,66 6, 9 Liebherr Product Catalogue Slewing Bearings

93 H No gearing KUD VO Ø Da Ø La Ø U,00,000 6 H Static tilting moment [ft-lbf],000, , ,000 00,000 00, ,000 00, , ,000,000,000,00,000 6 KUD0076-0VO KUD009-0VO KUD0067-0VO KUD09-0VO KUD07-0VO KUD0-0VO H Ø Di Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Diametral Pitch Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic KUD_V Da Di H O U H H La Li n M n d Pd z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] La/Li [inch] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] /0 / - 0 UNC ,9 9, / / - 0 UNC ,66 99, /6 / - 0 UNC ,8 0, /0 / - 0 UNC ,9 0, / / - 0 UNC ,, 6, /8 / - 0 UNC ,,868 0,7 Liebherr Product Catalogue Slewing Bearings 9

94 H No gearing KUD_0_VO,00,000 Ø Da Ø La Ø U,000,000 H H Static tilting moment [ft-lbf],00,000,000,000 00, , ,000,00,000,600,000,000,000 KUD000-00VO KUD VO KUD VO KUD VO KUD VO Ø Di Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] ,7,87, ,66,09 8, ,668,07, ,760,79, ,86,767 8,7 9 Liebherr Product Catalogue Slewing Bearings

95 H No gearing KUD VO Ø Da Ø La Ø U Static tilting moment [ft-lbf],000,000,00,000,000,000,00,000,000,000 00, ,000,000,000,00,000,000,000,00,000 H KUD060-0VO KUD070-0VO KUD080-0VO KUD090-0VO KUD000-0VO H Ø Di Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic KUD_V Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] ,880,7 76, ,006,9 80, ,7,700 8, ,8,98 87,7, ,0,86 9,088 Liebherr Product Catalogue Slewing Bearings 9

96 H No gearing KUD_0_VO,00,000 Ø Da Ø La Ø U,000,000 Static tilting moment [ft-lbf],00,000,000,000,00,000,000,000,00,000,000,000 00, ,000,000,000,00,000,000,000,00,000,000,000 H KUD VO KUD VO KUD VO KUD000-00VO KUD000-00VO H Ø Di Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,7, 08,88, ,7,697,89, ,60,7 7,80, ,77,6,66, ,87,08,9 96 Liebherr Product Catalogue Slewing Bearings

97 H No gearing KUD VO 6,000,000 Ø Da Ø La Ø U Static tilting moment [ft-lbf],000,000,000,000,000,000,000,000,000, ,000,000,000,00,000,000,000,00,000,000,000,00,000,000,000 H KUD090-0VO KUD000-0VO KUD00-0VO KUD00-0VO KUD00-0VO H Ø Di Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic KUD_V Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,878,90,98, ,06,96 7,96, ,,9,786, ,6,8 6,97, ,, 60, Liebherr Product Catalogue Slewing Bearings 97

98 H No gearing KUD_0_VO Ø Da Ø La Ø U 8,000,000 7,000,000 H H Static tilting moment [ft-lbf] 6,000,000,000,000,000,000,000,000,000,000,000, ,000,000,000,000,000,000,000,000 KUD000-00VO KUD000-00VO KUD000-00VO KUD000-00VO KUD000-00VO Ø Di Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,0,76 79,, ,8, 8,80, ,7,8 87,980, ,9,90 9,96, ,09,0 97,67 98 Liebherr Product Catalogue Slewing Bearings

99 Liebherr Product Catalogue Slewing Bearings 99 KUD_V

100 00 Liebherr Product Catalogue Slewing Bearings

101 Technical data KUD_Z Double-row ball bearings KUD_Z KUD_ZA KUD_ZJ KUD_ZO Liebherr Product Catalogue Slewing Bearings 0

102 External gear KUD_0_ZA Ø O Ø Li Ø Di,000,000 Static tilting moment [ft-lbf],00,000,000,000,00,000,000,000,00,000,000,000 00,000 H H KUD00-00ZA KUD07-00ZA KUD00-00ZA KUD0-00ZA H Ø U Ø La Ø d Ø Da ,000,000,000,00,000,000,000,00,000,000,000 Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,6,0,90,008 7,90, ,6,0,89,00 87,0, ,6,0,688,7 98,7, ,6,0,90,67 0,7 0 Liebherr Product Catalogue Slewing Bearings

103 External gear KUD ZA Ø O Ø Li Ø Di 6,000,000 Static tilting moment [ft-lbf] H,000,000,000,000,000,000,000,000,000,000 H H KUD070-0ZA KUD00-0ZA KUD060-0ZA Ø U Ø La Ø d Ø Da KUD_Z 0 0,000,000,000,000,000,000,000,000 Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,0 60,069,70,6 0,8, ,0 60,069,,77 0,096, ,8 68,67,0,096,8 Liebherr Product Catalogue Slewing Bearings 0

104 External gear KUD_0_ZA Ø O Ø Li Ø Di 0,000,000 H H H Static tilting moment [ft-lbf] 8,000,000 6,000,000,000,000,000, ,000,000,000,000,000,000,000,000,000,000 6,000,000 KUD00-00ZA KUD069-00ZA KUD079-00ZA KUD09-00ZA KUD00-00ZA Ø U Ø La Ø d Ø Da Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,76 7,7,96,76 76,96, ,6 8,,608,9 9,96, ,76 9,,97,8 00,70, ,76 9,,7,67 0,, ,76 9,,9,7,8 0 Liebherr Product Catalogue Slewing Bearings

105 External gear KUD_0_ZA Ø O Ø Li Ø Di 8,000,000 6,000,000 Static tilting moment [ft-lbf],000,000,000,000 0,000,000 8,000,000 6,000,000,000,000,000, ,000,000,000,000 6,000,000 8,000,000 H H KUD ZA KUD067-00ZA KUD07-00ZA KUD067-00ZA KUD077-00ZA H Ø U Ø La Ø d Ø Da KUD_Z Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,8.7 97,7. 6,88,06 88,00, , ,8.7 97,7. 6,970,876 9,889, ,8.7 97,7. 7,,90 0,, ,8.7 97,7. 7,8,677, 8, ,8.7 97,7. 8,,7 0,68 Liebherr Product Catalogue Slewing Bearings 0

106 H Internal gear KUD_0_ZJ Ø Da Ø La Ø U,000,000 6 Static tilting moment [ft-lbf],000,000,000,000,000,000,000, ,000,000,000,00,000,000,000,00,000,000,000,00,000 6 H KUD08-00ZJ KUD060-00ZJ KUD ZJ KUD099-00ZJ KUD00-00ZJ KUD08-00ZJ H Ø Di Ø d Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,6,0,80,78 7,979, ,6,0,0,97 8,99, ,80,60,7,7 89,, ,80,60,6,67 96,9, ,80,60,07,7 08,6 6, ,0 60,069,0,,67 06 Liebherr Product Catalogue Slewing Bearings

107 H Internal gear KUD ZJ Ø Da Ø La Ø U 7,000,000 Static tilting moment [ft-lbf] 6,000,000,000,000,000,000,000,000,000,000,000,000 H KUD0960-0ZJ KUD000-0ZJ KUD0690-0ZJ H Ø Di Ø d Ø Li Ø O KUD_Z 0 0,000,000,000,000,000,000 Static axial load [lbf],000,000 Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,0 60,069,0,67 9,7, ,0 60,069,87,80 0,887, ,8 68,67,7,00 8,08 Liebherr Product Catalogue Slewing Bearings 07

108 H Internal gear KUD_0_ZJ,000,000 Ø Da Ø La Ø U 0,000,000 H Static tilting moment [ft-lbf] 8,000,000 6,000,000,000,000,000,000 KUD099-00ZJ KUD06-00ZJ KUD090-00ZJ KUD000-00ZJ H Ø Di Ø d Ø Li Ø O 0 0,000,000,000,000,000,000,000,000,000,000 Static axial load [lbf] 6,000,000 Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,76 7,7,87, 7,9, ,76 7,7,608,9 9,96, ,6 8,,96,68 06,, ,6 8,,809, 9,00 08 Liebherr Product Catalogue Slewing Bearings

109 H Internal gear KUD_0_ZJ Ø Da Ø La Ø U 0,000,000 8,000,000 H Static tilting moment [ft-lbf] 6,000,000,000,000,000,000 0,000,000 8,000,000 6,000,000,000,000,000,000 KUD09-00ZJ KUD00-00ZJ KUD079-00ZJ KUD089-00ZJ H Ø Di Ø d Ø Li Ø O KUD_Z 0 0,000,000,000,000 6,000,000 8,000,000 Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,8.7 97,7.,60,6 6,989, ,9. 07,908. 7,76,800,76 6, ,9. 07,908. 8,,7 0,8 6, ,9. 07,908. 8,6,06,9 Liebherr Product Catalogue Slewing Bearings 09

110 0 Liebherr Product Catalogue Slewing Bearings

111 Technical data KUD_W Double-row ball bearings, four-point contact KUD_W KUD_WA KUD_WJ KUD_WO Liebherr Product Catalogue Slewing Bearings

112 H External gear KUD_0_WA Ø Da Ø d Ø O,000,000 Static tilting moment [ft-lbf],00,000,000,000,00,000,000,000,00,000,000,000 00, ,000,000,000,000,000,000,000,000 H KUD097-00WA KUD097-00WA KUD WA KUD WA KUD WA H Ø Di Ø Li Ø U Ø La Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,9.9 7,86.9,97,6,600, ,9.9 7,86.9,,08,670, ,9.9 7,86.9,6,6 7,79, ,9.9 7,86.9,0,98,60, ,9.9 7,86.9,7, 7,86 Liebherr Product Catalogue Slewing Bearings

113 H External gear KUD WA 6,000,000 Ø Da Ø d Ø O,000,000 H H Static tilting moment [ft-lbf],000,000,000,000,000,000,000, ,000,000,000,000,000,000,000,000,000,000 KUD067-0WA KUD077-0WA KUD087-0WA KUD097-0WA KUD007-0WA Ø Di Ø Li Ø U Ø La KUD_W Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,77.8 6,.,76,0 86,07, ,77.8 6,.,98, 9,, ,77.8 6,.,,76 99,6, ,77.8 6,.,7,96 0,066, ,0.6 7,.,680,97 0,6 Liebherr Product Catalogue Slewing Bearings

114 H External gear KUD_0_WA Ø Da Ø d Ø O 7,000,000 Static tilting moment [ft-lbf] 6,000,000,000,000,000,000,000,000,000,000,000, ,000,000,000,000,000,000,000,000,000,000 6,000,000 H KUD WA KUD WA KUD WA KUD WA KUD097-00WA H Ø Di Ø Li Ø U Ø La Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,7.9 9,7.8,69,90 9,6, ,7.9 9,7.8,99,69,98, ,.9 80,887.8,0,0,00, ,.9 80,887.8,9,0 60,, ,.9 80,887.8,79,98 6,989 Liebherr Product Catalogue Slewing Bearings

115 H External gear KUD WA Ø Da Ø d Ø O 0,000,000 9,000,000 Static tilting moment [ft-lbf] 8,000,000 7,000,000 6,000,000,000,000,000,000,000,000,000,000,000, ,000,000,000,000,000,000,000,000,000,000 6,000,000 7,000,000 H KUD097-0WA KUD007-0WA KUD07-0WA KUD07-0WA KUD07-0WA H Ø Di Ø Li Ø U Ø La KUD_W Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,7.9 9,7.8,7,7 9,, ,.9 80, ,0,097 0,08, ,.9 80, ,0,87 0,0, ,.9 80, ,86,,67, ,.9 80, ,908,88,0 Liebherr Product Catalogue Slewing Bearings

116 H External gear KUD_0_WA Ø Da Ø d Ø O,000,000 Static tilting moment [ft-lbf] 0,000,000 8,000,000 6,000,000,000,000,000, ,000,000,000,000 6,000,000 8,000,000 H KUD WA KUD097-00WA KUD097-00WA KUD097-00WA KUD097-00WA H Ø Di Ø Li Ø U Ø La Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,. 76,60. 6,8,07,9, ,. 76,60. 7,6, 9,7, ,. 76,60. 7,06,6 68,0, ,. 76,60. 7,87,06 76,, ,. 76,60. 8,,6 8, 6 Liebherr Product Catalogue Slewing Bearings

117 H H H Internal gear KUD_0_WJ Ø O Ø Li,000,000 Static tilting moment [ft-lbf],00,000,000,000,00,000,000,000,00,000,000,000 00, ,000,000,000,000,000,000,000,000 KUD006-00WJ KUD WJ KUD WJ KUD WJ KUD WJ Ø Di Ø d Ø U Ø La Ø Da KUD_W Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,9.9 7,86.9,97,90 6,7, ,9.9 7,86.9,,96,, ,9.9 7,86.9,6,6 7,90, ,9.9 7,86.9,,,90, ,9.9 7,86.9,7,99 8,0 Liebherr Product Catalogue Slewing Bearings 7

118 H Internal gear KUD WJ Ø O Ø Li 6,000,000,000,000 H H Static tilting moment [ft-lbf],000,000,000,000,000,000,000, ,000,000,000,000,000,000,000,000,000,000 KUD066-0WJ KUD076-0WJ KUD086-0WJ KUD096-0WJ KUD006-0WJ Ø Di Ø d Ø U Ø La Ø Da Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,77.8 6,.,789,80 87,06, ,77.8 6,.,0,90 9,, ,77.8 6,.,,76 98,996, ,77.8 6,.,8,88 0,96, ,0.6 7,.,708,88,60 8 Liebherr Product Catalogue Slewing Bearings

119 H Internal gear KUD_0_WJ Ø O Ø Li 7,000,000 Static tilting moment [ft-lbf] 6,000,000,000,000,000,000,000,000,000,000,000, ,000,000,000,000,000,000,000,000,000,000 6,000,000 H KUD WJ KUD WJ KUD WJ KUD006-00WJ KUD006-00WJ H Ø Di Ø d Ø U Ø La Ø Da KUD_W Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,7.9 9,7.8,7,0 0,80, ,7.9 9,7.8,98,8 7,0, ,.9 80,887.8,0,,6, ,.9 80,887.8,9,0 9,69, ,.9 80,887.8,79,98 6,9 Liebherr Product Catalogue Slewing Bearings 9

120 H Internal gear KUD WJ Ø O Ø Li 0,000,000 Static tilting moment [ft-lbf] 9,000,000 8,000,000 7,000,000 6,000,000,000,000,000,000,000,000,000,000,000, ,000,000,000,000 6,000,000 8,000,000 H KUD096-0WJ KUD006-0WJ KUD06-0WJ KUD06-0WJ KUD06-0WJ H Ø Di Ø d Ø U Ø La Ø Da Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,7.9 9,7.8,77,807 9,889, ,.9 80, ,0,097 0,08, ,.9 80, ,6,8 0,76, ,.9 80, ,6,8 7,0, ,.9 80, ,908,88,090 0 Liebherr Product Catalogue Slewing Bearings

121 H Internal gear KUD_0_WJ Ø O Ø Li,000,000 Static tilting moment [ft-lbf] 0,000,000 8,000,000 6,000,000,000,000,000, ,000,000,000,000 6,000,000 8,000,000 H KUD006-00WJ KUD006-00WJ KUD006-00WJ KUD006-00WJ KUD006-00WJ H Ø Di Ø d Ø U Ø La Ø Da KUD_W Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,. 76,60. 6,880,9,, ,. 76,60. 7,,987 6,78, ,. 76,60. 7,06,6 67,60, ,. 76,60. 7,87,06 7,7, ,. 76,60. 8,88, 8,9 Liebherr Product Catalogue Slewing Bearings

122 H H No gearing KUD_0_WO Ø O Ø Li,000,000 Static tilting moment [ft-lbf],00,000,000,000,00,000,000,000,00,000,000,000 00, ,000,000,000,00,000,000,000,00,000,000,000,00,000,000,000 H KUD097-00WO KUD097-00WO KUD WO KUD WO KUD WO Ø Di Ø U Ø La Ø Da Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] ,97,6, ,,08,670, ,6,6 7,79, ,0,98,60, ,7, 7,86 Liebherr Product Catalogue Slewing Bearings

123 H No gearing KUD WO Ø O Ø Li 6,000,000,000,000 H H Static tilting moment [ft-lbf],000,000,000,000,000,000,000, ,000,000,000,000,000,000,000,000,000,000 KUD067-0WO KUD077-0WO KUD087-0WO KUD097-0WO KUD007-0WO Ø Di Ø U Ø La Ø Da KUD_W Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,76,0 86,07, ,98, 9,, ,,76 99,6, ,7,96 0,066, ,680,97 0,6 Liebherr Product Catalogue Slewing Bearings

124 H No gearing KUD_0_WO Ø O Ø Li 7,000,000 Static tilting moment [ft-lbf] 6,000,000,000,000,000,000,000,000,000,000,000, ,000,000,000,000,000,000,000,000,000,000 6,000,000 H KUD WO KUD WO KUD WO KUD WO KUD097-00WO H Ø Di Ø U Ø La Ø Da Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,69,90 9,6, ,99,69,98, ,0,0,00, ,9,0 60,, ,79,98 6,989 Liebherr Product Catalogue Slewing Bearings

125 H No gearing KUD WO Ø O Ø Li 0,000,000 Static tilting moment [ft-lbf] 9,000,000 8,000,000 7,000,000 6,000,000,000,000,000,000,000,000,000,000,000, ,000,000,000,000 6,000,000 8,000,000 H KUD097-0WO KUD007-0WO KUD07-0WO KUD07-0WO KUD07-0WO H Ø Di Ø U Ø La Ø Da KUD_W Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,7,7 9,, ,0,097 0,08, ,0,87 0,0, ,86,,67, ,908,88,0 Liebherr Product Catalogue Slewing Bearings

126 H No gearing KUD_0_WO Ø O Ø Li,000,000 Static tilting moment [ft-lbf] 0,000,000 8,000,000 6,000,000,000,000,000, ,000,000,000,000 6,000,000 8,000,000 H KUD WO KUD097-00WO KUD097-00WO KUD097-00WO KUD097-00WO H Ø Di Ø U Ø La Ø Da Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,8,07,9, ,6, 9,7, ,06,6 68,0, ,87,06 76,, ,,6 8, 6 Liebherr Product Catalogue Slewing Bearings

127 Liebherr Product Catalogue Slewing Bearings 7 KUD_W

128 8 Liebherr Product Catalogue Slewing Bearings

129 Technical data ROD_D Triple-row roller bearings* ROD_D* ROD_DA* ROD_DJ* ROD_D* * Shorter delivery times can be realized. Liebherr Product Catalogue Slewing Bearings 9

130 External gear ROD_ / 8_DA* Ø O Ø Li Ø Di 8,000,000 7,000,000 H H H Static tilting moment [ft-lbf] 6,000,000,000,000,000,000,000,000,000,000,000, ,000,000,000,000,000,000,000,000,000,000 6,000,000 ROD087-0DA ROD00-0DA ROD097-08DA ROD097-08DA ROD00-08DA Ø U Ø La Ø d Ø Da Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] La/Li [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], / ,66 9,,98,9 9,00, , 6,80,97,6,96, / ,66 9,,6,97 7,69, ,0,06,96, 07,76, ,9,87,780, 8,06 * Shorter delivery times can be realized. 0 Liebherr Product Catalogue Slewing Bearings

131 External gear ROD_6 / _DA* Ø O Ø Li Ø Di 0,000,000 H H H Static tilting moment [ft-lbf],000,000 0,000,000,000,000 ROD DA ROD060-06DA ROD078-0DA Ø U Ø La Ø d Ø Da 0 0,000,000,000,000 6,000,000 8,000,000 0,000,000,000,000 Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic ROD_D* Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] La/Li [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,99 8,878 6,80,9 69,, ,88 9,76 7,78,6 7,79 6, ,86 07,7,690,79,, * Shorter delivery times can be realized. Liebherr Product Catalogue Slewing Bearings

132 External gear ROD_0 / 0_DA* 0,000,000 Ø O Ø Li Ø Di,000,000 H Static tilting moment [ft-lbf] H H 0,000,000,000,000 0,000,000,000, ,000,000 0,000,000,000,000 0,000,000 ROD07-00DA ROD DA ROD DA Ø U Ø La Ø d Ø Da Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] La/Li [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] 0, ,7 6,67 7,7,06,70,90, ,6 7,6 6,9,999 8,8,088 6, ,96,89 7,780,,9,9 * Shorter delivery times can be realized. Liebherr Product Catalogue Slewing Bearings

133 Internal gear ROD DJ* Ø Da Ø La Ø U 0,000,000,000,000 H H H Static tilting moment [ft-lbf] 0,000,000,000,000 0,000,000,000,000 0,000,000 ROD0-0DJ ROD076-0DJ Ø Di Ø d Ø Li Ø o,000, ,000,000 8,000,000,000,000 6,000,000 Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic ROD_D* Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] La/Li [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] 8, ,07 7, ,7 0,70,09,9,69,7 9, ,07 7, ,7 0,70 7,09,79,9,6 * Shorter delivery times can be realized. Liebherr Product Catalogue Slewing Bearings

134 Liebherr Product Catalogue Slewing Bearings

135 Technical data ROD_D Triple-row roller bearings ROD_DA ROD_DJ ROD_DO ROD_D Liebherr Product Catalogue Slewing Bearings

136 External gear ROD DA Ø O Ø Li Ø Di,000,000,00,000 H H H Static tilting moment [ft-lbf],000,000,00,000,000,000,00,000,000,000 00, ,000,000,000,00,000,000,000,00,000,000,000,00,000 ROD00-0DA ROD000-0DA ROD0600-0DA ROD0800-0DA ROD0000-0DA Ø U Ø La Ø d Ø Da Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,,70,086,677 77,, ,69 6,8,,9 9,00, ,69 6,8,,0,87, ,0 69,96,007,9 6,, ,0 69,96,,9,87 6 Liebherr Product Catalogue Slewing Bearings

137 External gear ROD_6_DA Ø O Ø Li Ø Di 0,000,000 9,000,000 8,000,000 H H H Static tilting moment [ft-lbf] 7,000,000 6,000,000,000,000,000,000,000,000,000,000,000, ,000,000,000,000,000,000,000,000,000,000 6,000,000 ROD DA ROD DA ROD00-06DA ROD000-06DA ROD DA Ø U Ø La Ø d Ø Da Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,76 7,,8,0 8,8, ,76 7,,8,98 8,688, ,6 8,,8,9,7, ,6 8,,6,9,86, ,76 9, 6,00,0 79,7 ROD_D Liebherr Product Catalogue Slewing Bearings 7

138 External gear ROD DA Ø O Ø Li Ø Di,000,000 0,000,000 6 H H H Static tilting moment [ft-lbf],000,000 0,000,000,000, ,000,000,000,000 6,000,000 8,000,000 0,000,000 6 ROD00-0DA ROD000-0DA ROD0800-0DA ROD00-0DA ROD00-0DA ROD0000-0DA Ø U Ø La Ø d Ø Da Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,98 97,87,98,0 678,7, ,98 97,87 6,6,0 79,6, ,6 08,67 7,6, 76,800 6, ,6 08,67 8,66,00 8,8 7, ,777 9, 9,,6 868,7 6 8, ,777 9, 0,9,7 9,066 8 Liebherr Product Catalogue Slewing Bearings

139 External gear ROD_0_DA,000,000 Ø O Ø Li Ø Di 0,000,000,000,000 H H H Static tilting moment [ft-lbf] 0,000,000,000,000 0,000,000,000,000 0,000,000,000, ,000,000,000,000 6,000,000 8,000,000 0,000,000,000,000,000,000 ROD DA ROD00-00DA ROD00-00DA ROD DA ROD000-00DA Ø U Ø La Ø d Ø Da Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] 7, ,76,9 9,7,,068,9 8, ,08 6,6 0,7,07,097,068 9, ,08 6,6,790,,67, 0, ,76 9,,78,6,,969, ,76 9,,98,,,776 ROD_D Liebherr Product Catalogue Slewing Bearings 9

140 External gear ROD_0_DA Ø O Ø Li Ø Di 70,000,000 60,000,000 H H H Static tilting moment [ft-lbf] 0,000,000 0,000,000 0,000,000 0,000,000 0,000, ,000,000 0,000,000,000,000 0,000,000,000,000 6 ROD00-00DA ROD00-00DA ROD DA ROD000-00DA ROD DA ROD DA Ø U Ø La Ø d Ø Da Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,9 90,8,06,90,7,0, ,9 90,8,76,009,70,90, ,9 90,8 6,6,06,67,08 6, ,9 90,8 8,69,06,778,688 8, ,9 90,8 0,77,8,878,9 6 0, ,9 90,8,,989,99,69 0 Liebherr Product Catalogue Slewing Bearings

141 Internal gear ROD DJ Ø Da Ø La Ø U,000,000,00,000 H H H Static tilting moment [ft-lbf],000,000,00,000,000,000,00,000,000,000 00, ,000,000,000,00,000,000,000,00,000,000,000,00,000 ROD00-0DJ ROD000-0DJ ROD0600-0DJ ROD0800-0DJ ROD0000-0DJ Ø Di Ø d Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,,70,086,677 77,, ,69 6,8,,9 9,00, ,69 6,8,,0,87, ,0 69,96,007,9 6,, ,0 69,96,,9,87 ROD_D Liebherr Product Catalogue Slewing Bearings

142 Internal gear ROD_6_DJ Ø Da Ø La Ø U 0,000,000 9,000,000 Static tilting moment [ft-lbf] H H 8,000,000 7,000,000 6,000,000,000,000,000,000,000,000,000,000,000, ,000,000,000000,000,000,000,000,000,000 6,000,000 ROD DJ ROD DJ ROD00-06DJ ROD000-06DJ ROD DJ H Ø Di Ø d Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] Liebherr Product Catalogue Slewing Bearings

143 Internal gear ROD DJ Ø Da Ø La Ø U,000,000 0,000,000 6 H H H Static tilting moment [ft-lbf],000,000 0,000,000,000, ,000,000,000,000 6,000,000 8,000,000 0,000,000 6 ROD00-0DJ ROD000-0DJ ROD0800-0DJ ROD00-0DJ ROD00-0DJ ROD0000-0DJ Ø Di Ø d Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,98 97,87,98,0 678,7, ,98 97,87 6,6,0 79,6, ,6 08,67 7,6, 76,800 6, ,6 08,67 8,66,00 8,8 7, ,777 9, 9,,6 868,7 6 8, ,777 9, 0,9,7 9,066 ROD_D Liebherr Product Catalogue Slewing Bearings

144 Internal gear ROD_0_DJ Ø Da Ø La Ø U,000,000 0,000,000,000,000 H H H Static tilting moment [ft-lbf] 0,000,000,000,000 0,000,000,000,000 0,000,000,000, ,000,000,000,000 6,000,000 8,000,000 0,000,000,000,000,000,000 ROD DJ ROD00-00DJ ROD00-00DJ ROD DJ ROD000-00DJ Ø Di Ø d Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] 7, ,76 9 9,7,,068,9 8, ,08 6,6 0,7,07,097,068 9, ,08 6,6,790,,67, 7, ,76 9,,78,6,,969 8, ,76 9,,98,,,776 Liebherr Product Catalogue Slewing Bearings

145 Internal gear ROD_0_DJ Ø Da Ø La Ø U 70,000,000 Static tilting moment [ft-lbf] 60,000,000 0,000,000 0,000,000 0,000,000 0,000,000 0,000, ,000, ,000,000,000,000 0,000,000,000,000 6 H H ROD00-00DJ ROD00-00DJ ROD DJ ROD000-00DJ ROD DJ ROD DJ H Ø Di Ø d Ø Li Ø O Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,9 90,8,06,90,7,0, ,9 90,8,76,009,70,90, ,9 90,8 6,6,06,67,08 6, ,9 90,8 8,69,06,778,688 8, ,9 90,8 0,77,8,878,9 6 0, ,9 90,8,,989,99,69 ROD_D Liebherr Product Catalogue Slewing Bearings

146 6 Liebherr Product Catalogue Slewing Bearings

147 Technical data RKD Combined roller and ball bearings RKD_ZA RKD_ZJ RKD_ZO RKD_Z Liebherr Product Catalogue Slewing Bearings 7

148 H External gear RKD ZA Ø O Ø Li Ø Di,000,000 Static tilting moment [ft-lbf] 0,000,000,000,000 0,000,000,000,000 H RKD00-0ZA RKD070-0ZA RKD0000-0ZA RKD00-0ZA H Ø U Ø La Ø d Ø Da 0 0,000,000,000,000 6,000,000 8,000,000 0,000,000,000,000 Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,969 7,99 9,,6 868,7, ,969 7,99 9,97,00 89,9, ,969 7,99 0,9,7 9,066, ,969 7,99,88,78 9, 8 Liebherr Product Catalogue Slewing Bearings

149 H H External gear RKD_6_ZA Ø O Ø Li Ø Di,000,000 0,000,000 H Static tilting moment [ft-lbf],000,000 0,000,000,000,000 0,000,000,000,000 RKD ZA RKD00-06ZA RKD000-06ZA RKD070-06ZA Ø U Ø La Ø d Ø Da 0 0,000,000,000,000 6,000,000 8,000,000 0,000,000,000,000,000,000 Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] 6, ,97 87,9,07,6,08,87 6, ,97 87,9,76,8,0,67 6, ,97 87,9,08,09,,69 7, ,97 87,9,00,097,90,8 RKD_Z Liebherr Product Catalogue Slewing Bearings 9

150 H External gear RKD_0_ZA Ø O Ø Li Ø Di,000,000 0,000,000 H Static tilting moment [ft-lbf],000,000 0,000,000,000,000 0,000,000,000,000 0,000,000,000,000 H RKD000-00ZA RKD070-00ZA RKD ZA RKD000-00ZA Ø U Ø La Ø d Ø Da 0 0,000,000 8,000,000,000,000 Static axial load [lbf] 6,000,000 Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] 8, ,998 0,997,98,,,776 8, ,998 0,997,797,00,6,79 8, ,998 0,997 6,98,9,98, 9, ,998 0,997 7,68,68,,7 0 Liebherr Product Catalogue Slewing Bearings

151 H External gear RKD ZA Ø O Ø Li Ø Di 60,000,000 Static tilting moment [ft-lbf] 0,000,000 0,000,000 0,000,000 0,000,000 0,000,000 H RKD0000-0ZA RKD000-0ZA RKD0600-0ZA H Ø U Ø La Ø d Ø Da 0 0,000,000 0,000,000,000,000 0,000,000 Static axial load [lbf] Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf], ,779,8 8,6,69,69,87, ,779,8 9,707,6,700,0, ,779,8 0,786,8,79,8 RKD_Z Liebherr Product Catalogue Slewing Bearings

152 H External gear RKD_0_ZA Ø O Ø Li Ø Di 60,000,000 0,000,000 0,000,000 0,000,000 0,000,000 0,000,000 H RKD000-00ZA RKD ZA RKD ZA H Ø U Ø La Ø d Ø Da 0 0,000,000 0,000,000,000,000 0,000,000,000,000 Bearing data Bolt data Gear data Load rating Bearing type Weight Outer diameter Inner diameter Total height Outer diameter Inner ring Inner diameter Outer ring Height Outer ring Height Inner ring Outer ring Inner ring Number of bores per ring Bolt diameter Number of grease nipples per level Module (metric) Number of teeth Profile shift Tip reduction Tooth width Tooth forces (standard) Tooth forces (maximum) static dynamic Static tilting moment [ft-lbf] Static axial load [lbf] Da Di H O U H H La Li n M n d m z x*m k*m b C stat C dyn [lbs] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [inch] [mm] [inch] [mm] [inch] [inch] [inch] [lbf] [lbf] [lbf] [lbf] 0, , 7,8,879,7,68, , 0,77,8,878,9, ,,,989,99,69 Liebherr Product Catalogue Slewing Bearings

153 Liebherr Product Catalogue Slewing Bearings RKD_Z

154 Further information On our homepage at bearings.liebherr.com you can find more information on slewing bearings, as well as our request datasheet. Request Data Slewing Bearingss : Telephone: Company: Contact Person: Road: Application: / Type: Postcode: Country: tion: : Application Application (please describe briefly and include a sketch): Project name: Exchangeable with existing solution: yes (please include drawing) no Operating conditions and loads Position of rotary axis vertical horizontal alternating (please call to discuss!) exerted load suspended load Type of movement Pivotal movement Continual rotational movement Bearing load Tilting moment [knm] Axial load [kn] Radial load [kn] Total bearing rotations or Adjusting speed [U/s] or [º/s] and time unit [h] or Swing angle [º] und number of swing cycles [] Additional design features Operation Stationary Temperature range [ºC]: min: max: min: max: Sealing system: Sealed on both sides Special seal against: Dust seal Corrosion protection (ISO 9 part ): Untreated, preserved C C C Standards, approval conditions (EN00):. DNV/GL. if yes, approval company: ABS LRS CSR BV Others: Liebherr Product Catalogue Slewing Bearings

155

156 KUD_V Ball bearings; four-point contact KUD_Z Double-row ball bearings KUD_W Double-row ball bearings; four-point contact ROD_D Triple-row roller bearings* -Klapper- Verkürzte Seite ROD_D Triple-row roller bearings RKD Combined roller and ball bearings * Shorter delivery times can be realized.

157 -Klapper- Verkürzte Seite

158 Liebherr Components Gas engines Diesel engines Fuel injection systems Axial piston hydraulics Hydraulic cylinders Slewing bearings Gearboxes and winches Electric machines Remanufacturing Human-machine interfaces and gateways Control electronics and sensor technology Power electronics Control cabinets Software From A to Z the components division of the Liebherr Group offers a broad range of solutions in the area of mechanical, hydraulic, electric and electronic drive system and control technology. The efficient components and systems are produced at a total of ten production sites around the world to the highest standards of quality. Central contact persons for all product lines are available to our customers at Liebherr- Components AG and the regional sales and distribution branches. Liebherr is your partner for joint success: from the product idea to development, manufacture and commissioning right through to customer service solutions like remanufacturing. components.liebherr.com Printed in Germany by Schirmer BK GWL-SB-PC en-imperial Subject to technical modifications. Liebherr-Components AG Postfach, CH- Nussbaumen / AG , Fax components@liebherr.com